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                                                                      EXHBIT 4.G

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                              WYMAN-GORDON COMPANY

                                       TO

                       STATE STREET BANK AND TRUST COMPANY

                                     Trustee

                              --------------------

                                    Indenture

                          Dated as of December 15, 1997

                              --------------------

                             Senior Debt Securities


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                                TABLE OF CONTENTS

                                                                           Page
                                                                           ----

RECITALS OF THE COMPANY .......................................................1

ARTICLE ONE - DEFINITIONS AND OTHER PROVISIONS OF GENERAL
                APPLICATION ...................................................1
  SECTION 101.  Definitions ...................................................1
  SECTION 102.  Compliance Certificates and Opinions .........................12
  SECTION 103.  Form of Documents Delivered to Trustee .......................12
  SECTION 104.  Acts of Holders ..............................................13
  SECTION 105.  Notices, etc., to Trustee and Company ........................15
  SECTION 106.  Notice to Holders; Waiver ....................................15
  SECTION 107.  Counterparts; Effect of Headings and Table of Contents .......16
  SECTION 108.  Successors and Assigns .......................................16
  SECTION 109.  Severability Clause ..........................................16
  SECTION 110.  Benefits of Indenture ........................................16
  SECTION 111.  Governing Law ................................................17
  SECTION 112.  Legal Holidays ...............................................17
  SECTION 113.  Immunity of Stockholders, Directors, Officers and Agents
                of the Company ...............................................17
  SECTION 114.  Conflict with Trust Indenture Act ............................18

ARTICLE TWO - SECURITIES FORMS ...............................................18
  SECTION 201.  Forms of Securities ..........................................18
  SECTION 202.  Form of Trustee's Certificate of Authentication ..............18
  SECTION 203.  Securities Issuable in Global Form ...........................19

ARTICLE THREE - THE SECURITIES ...............................................20
  SECTION 301.  Amount Unlimited; Issuable in Series .........................20
  SECTION 302.  Denominations ................................................24
  SECTION 303.  Execution, Authentication, Delivery and Dating ...............24
  SECTION 304.  Temporary Securities .........................................26

  SECTION 305.  Registration, Registration of Transfer and Exchange ..........29
  SECTION 306.  Mutilated, Destroyed, Lost and Stolen Securities .............32
  SECTION 307.  Payment of Interest; Interest Rights Preserved ...............33

  SECTION 308.  Persons Deemed Owners ........................................35
  SECTION 309.  Cancellation .................................................36
  SECTION 310.  Computation of Interest ......................................37

ARTICLE FOUR - SATISFACTION AND DISCHARGE ....................................37
  SECTION 401.  Satisfaction and Discharge of Indenture ......................37
  SECTION 402.  Application of Trust Funds ...................................38


                                      (i)


<PAGE>   3


                                                                           Page
                                                                           ----

ARTICLE FIVE - REMEDIES ......................................................39
  SECTION 501.  Events of Default ............................................39
  SECTION 502.  Acceleration of Maturity; Rescission and Annulment ...........41
  SECTION 503.  Collection of Indebtedness and Suits for Enforcement by 
                Trustee ......................................................42
  SECTION 504.  Trustee May File Proofs of Claim .............................43
  SECTION 505.  Trustee May Enforce Claims Without Possession of
                Securities or Coupons ........................................43
  SECTION 506.  Application of Money Collected ...............................44
  SECTION 507.  Limitation on Suits ..........................................44
  SECTION 508.  Unconditional Right of Holders to Receive Principal, Premium
                or Make-Whole Amount, if any, and Interest ...................45
  SECTION 509.  Restoration of Rights and Remedies ...........................45
  SECTION 510.  Rights and Remedies Cumulative ...............................45
  SECTION 511.  Delay or Omission Not Waiver .................................46
  SECTION 512.  Control by Holders of Securities .............................46
  SECTION 513.  Waiver of Defaults ...........................................46
  SECTION 514.  Waiver of Usury, Stay or Extension Laws ......................47
  SECTION 515.  Undertaking for Costs ........................................47

ARTICLE SIX - THE TRUSTEE ....................................................47
  SECTION 601.  Notice of Defaults ...........................................47
  SECTION 602.  Certain Rights of Trustee ....................................48
  SECTION 603.  Not Responsible for Recitals or Issuance of Securities .......49
  SECTION 604.  May Hold Securities ..........................................49
  SECTION 605.  Money Held in Trust ..........................................50
  SECTION 606.  Compensation and Reimbursement ...............................50
  SECTION 607.  Corporate Trustee Required; Eligibility; Conflicting 
                Interests ....................................................51
  SECTION 608.  Resignation and Removal; Appointment of Successor ............51
  SECTION 609.  Acceptance of Appointment by Successor .......................52
  SECTION 610.  Merger, Conversion, Consolidation or Succession to Business ..54
  SECTION 611.  Appointment of Authenticating Agent ..........................54
  SECTION 612.  Certain Duties and Responsibilities of the Trustee. ..........56

ARTICLE SEVEN - HOLDERS' LISTS AND REPORTS BY TRUSTEE AND
                COMPANY ......................................................57
  SECTION 701.  Disclosure of Names and Addresses of Holders .................57
  SECTION 702.  Reports by Trustee ...........................................58
  SECTION 703.  Reports by Company ...........................................58
  SECTION 704.  Company to Furnish Trustee Names and Addresses of Holders ....58


                                      (ii)


<PAGE>   4


                                                                           Page
                                                                           ----

ARTICLE EIGHT - CONSOLIDATION, MERGER, SALE, LEASE OR
                CONVEYANCE ...................................................59
  SECTION 801.  Consolidations and Mergers of  Company and Sales, Leases and 
                Conveyances Permitted Subject to Certain Conditions ..........59
  SECTION 802.  Rights and Duties of Successor Corporation ...................59
  SECTION 803.  Officers' Certificate and Opinion of Counsel .................60

ARTICLE NINE - SUPPLEMENTAL INDENTURES .......................................60
  SECTION 901.  Supplemental Indentures Without Consent of Holders ...........60
  SECTION 902.  Supplemental Indentures with Consent of Holders ..............62
  SECTION 903.  Execution of Supplemental Indentures .........................63
  SECTION 904.  Effect of Supplemental Indentures ............................63
  SECTION 905.  Conformity with Trust Indenture Act ..........................63
  SECTION 906.  Reference in Securities to Supplemental Indentures ...........63

ARTICLE TEN - COVENANTS ......................................................63
  SECTION 1001.  Payment of Principal, Premium or Make-Whole Amount,
                 if any; and Interest ........................................63
  SECTION 1002.  Maintenance of Office or Agency .............................64
  SECTION 1003.  Money for Securities Payments to Be Held in Trust ...........65
  SECTION 1004.  Existence ...................................................67
  SECTION 1005.  Maintenance of Properties ...................................67
  SECTION 1006.  Insurance ...................................................67
  SECTION 1007.  Payment of Taxes and Other Claims ...........................67
  SECTION 1008.  Statement as to Compliance ..................................68
  SECTION 1009.  Waiver of Certain Covenants .................................68

ARTICLE ELEVEN - REDEMPTION OF SECURITIES ....................................68
  SECTION 1101.  Applicability of Article ....................................68
  SECTION 1102.  Election to Redeem; Notice to Trustee .......................68
  SECTION 1103.  Selection by Trustee of Securities to Be Redeemed ...........68
  SECTION 1104.  Notice of Redemption ........................................69
  SECTION 1105.  Deposit of Redemption Price .................................70
  SECTION 1106.  Securities Payable on Redemption Date .......................71
  SECTION 1107.  Securities Redeemed in Part .................................72

ARTICLE TWELVE - SINKING FUNDS ...............................................72
  SECTION 1201.  Applicability of Article ....................................72
  SECTION 1202.  Satisfaction of Sinking Fund Payments with Securities .......72
  SECTION 1203.  Redemption of Securities for Sinking Fund ...................73


                                     (iii)


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                                                                           Page
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ARTICLE THIRTEEN - REPAYMENT AT THE OPTION OF HOLDERS ........................73
  SECTION 1301.  Applicability of Article ....................................73
  SECTION 1302.  Repayment of Securities .....................................73
  SECTION 1303.  Exercise of Option ..........................................74
  SECTION 1304.  When Securities Presented for Repayment Become Due
                 and Payable .................................................74
  SECTION 1305.  Securities Repaid in Part ...................................75

ARTICLE FOURTEEN - DEFEASANCE AND COVENANT DEFEASANCE ........................76
  SECTION 1401.  Applicability of Article; Company's Option to Effect
                 Defeasance or Covenant Defeasance ...........................76
  SECTION 1402.  Defeasance and Discharge ....................................76
  SECTION 1403.  Covenant Defeasance .........................................76
  SECTION 1404.  Conditions to Defeasance or Covenant Defeasance .............77
  SECTION 1405.  Deposited Money and Government Obligations to Be Held
                 in Trust; Other Miscellaneous Provisions ....................79

ARTICLE FIFTEEN - MEETINGS OF HOLDERS OF SECURITIES ..........................80
  SECTION 1501.  Purposes for Which Meetings May Be Called ...................80
  SECTION 1502.  Call, Notice and Place of Meetings ..........................80
  SECTION 1503.  Persons Entitled to Vote at Meetings ........................80
  SECTION 1504.  Quorum; Action ..............................................81
  SECTION 1505.  Determination of Voting Rights; Conduct and Adjournment
                 of Meetings .................................................82
  SECTION 1506.  Counting Votes and Recording Action of Meetings .............83

SIGNATURES AND SEALS .........................................................84

ACKNOWLEDGMENT ...............................................................85

EXHIBIT A
FORM OF REDEEMABLE OR NON-REDEEMABLE SENIOR SECURITY ........................A-1

EXHIBIT B
FORMS OF CERTIFICATION ......................................................B-1



                                      (iv)


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                              WYMAN-GORDON COMPANY

     Reconciliation and tie between Trust Indenture Act of 1939 (the "Trust
Indenture Act" or "TIA") and Indenture, dated as of December 15, 1997.

 Trust Indenture

   ACT SECTION                                         INDENTURE SECTION

ss. 310(a)(1)...................................            607
       (a)(2)...................................            607
          (b)...................................       607, 608
   ss. 312(c)...................................            701
   ss. 313(a)...................................            702
          (c)...................................            702
   ss. 314(a)...................................            703
       (a)(4)...................................           1009
       (c)(1)...................................            102
       (c)(2)...................................            102
          (e)...................................            102
   ss. 315(b)...................................            601
   ss. 316(a)   (last sentence).................            101  ("Outstanding")
    (a)(1)(A)...................................       502, 512
    (a)(1)(B)...................................            513
          (b)...................................            508
ss. 317(a)(1)...................................            503
       (a)(2)...................................            504
   ss. 318(a)...................................            111
          (c)...................................            111

---------------


NOTE: This reconciliation and tie shall not, for any purpose, be deemed to be a
      part of the Indenture.

     Attention should also be directed to TIA Section 318(c), which provides
that the provisions of TIA Sections 310 to and including 317 of the Trust
Indenture Act are a part of and govern every qualified indenture, whether or not
physically contained therein.


                                      (v)


<PAGE>   7



     INDENTURE, dated as of December 15, 1997, between WYMAN-GORDON COMPANY, a
corporation organized under the laws of the Commonwealth of Massachusetts
(hereinafter called the "Company"), having its principal office at 244 Worcester
Street, North Grafton, Massachusetts 01536-8001, and State Street Bank and Trust
Company, a trust company organized under the laws of The Commonwealth of
Massachusetts as Trustee hereunder (hereinafter called the "Trustee"), having a
Corporate Trust Office at Two International Place, Boston, MA 02110.

                             RECITALS OF THE COMPANY

     The Company deems it necessary to issue from time to time for its lawful
purposes senior debt securities (hereinafter called the "Securities") evidencing
its unsecured and senior indebtedness, and has duly authorized the execution and
delivery of this Indenture to provide for the issuance from time to time of the
Securities, to be issued in one or more Series as provided in this Indenture.

     This Indenture is subject to the provisions of the Trust Indenture Act of
1939, as amended (the "Trust Indenture Act" or "TIA"), that are deemed to be
incorporated into this Indenture and shall, to the extent applicable, be
governed by such provisions.

     All things necessary to make this Indenture a valid agreement of the
Company, in accordance with its terms, have been done.

     NOW, THEREFORE, THIS INDENTURE WITNESSETH:

     For and in consideration of the premises and the purchase of the Securities
by the Holders thereof, it is mutually covenanted and agreed, for the equal and
proportionate benefit of all Holders of the Securities, as follows:

     ARTICLE ONE - DEFINITIONS AND OTHER PROVISIONS OF GENERAL
                                   APPLICATION

     SECTION 101. DEFINITIONS. For all purposes of this Indenture, except as
otherwise expressly provided or unless the context otherwise requires:

          (1) the terms defined in this Article have the meanings assigned to
     them in this Article, and include the plural as well as the singular;

          (2) all other terms used herein which are defined in the TIA, either
     directly or by reference therein, have the meanings assigned to them
     therein, and the terms "cash transaction" and "self-liquidating paper," as
     used in TIA Section 311, shall have the meanings assigned to them in the
     rules of the Commission adopted under the TIA;


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          (3) all accounting terms not otherwise defined herein have the
     meanings assigned to them in accordance with GAAP; and

          (4) the words "herein," "hereof "and "hereunder" and other words of
     similar import refer to this Indenture as a whole and not to any particular
     Article, Section or other subdivision.

     "ACT," when used with respect to any Holder, has the meaning specified in
Section 104.

     "AFFILIATE" of any specified Person means any other Person directly or
indirectly controlling or controlled by or under direct or indirect common
control with such specified Person. For the purposes of this definition,
"control" when used with respect to any specified Person means the power to
direct the management and policies of such Person, directly or indirectly,
whether through the ownership of voting securities, by contract or otherwise;
and the terms "controlling" and "controlled" have meanings correlative to the
foregoing.

     "AUTHENTICATING AGENT" means any Person authorized by the Trustee pursuant
to Section 611 hereof to act on behalf of the Trustee to authenticate
Securities.

     "AUTHORIZED NEWSPAPER" means a newspaper, printed in the English language
or in an official language of the country of publication, customarily published
on each Business Day, whether or not published on Saturdays, Sundays or
holidays, and of general circulation in each place in connection with which the
term is used or in the financial community of each such place. Whenever
successive publications are required to be made in Authorized Newspapers, the
successive publications may be made in the same or in different Authorized
Newspapers in the same city meeting the foregoing requirements and in each case
on any Business Day.

     "BANKRUPTCY LAW" has the meaning specified in Section 501.

     "BEARER SECURITY" means any Security established pursuant to Section 201
which is payable to bearer.

     "BOARD OF DIRECTORS" means the board of directors of the Company or any
committee of that board duly authorized to act hereunder.

     "BOARD RESOLUTION" means a copy of a resolution certified by the Secretary
or an Assistant Secretary of the Company to have been duly adopted by the Board
of Directors and to be in full force and effect on the date of such
certification, and delivered to the Trustee.

     "BUSINESS DAY," when used with respect to any Place of Payment or any other
particular location referred to in this Indenture or in the Securities, means,
unless otherwise specified with respect to any Securities issued pursuant to
Section 301, any day, other than a 


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Saturday or Sunday, that is not a day on which banking institutions in that
Place of Payment or particular location are authorized or required by law,
regulation or executive order to close.

     "CAPITAL STOCK" of any Person means any and all shares, interests,
participations, rights to purchase, warrants, options or other equivalents
(however designated) of corporate stock or other equity of such Person.

     "CEDEL" means Centrale de Livraison de Valeurs Mobilieres, S.A., or its
successor.

     "COMMISSION" means the Securities and Exchange Commission, as from time to
time constituted, created under the Securities Exchange Act of 1934, or, if at
any time after execution of this instrument such Commission is not existing and
performing the duties now assigned to it under the Trust Indenture Act, then the
body performing such duties on such date.

     "COMMON STOCK" means, with respect to any Person, all shares of capital
stock issued by such Person other than Preferred Stock.

     "COMPANY" means the Person named as the "Company" in the first paragraph of
this Indenture until a successor corporation shall have become such pursuant to
the applicable provisions of this Indenture, and thereafter "Company" shall mean
such successor corporation.

     "COMPANY REQUEST" and "COMPANY ORDER" mean, respectively, a written request
or order signed in the name of the Company by its Chairman of the Board, the
President or a Vice President, and by its Treasurer, an Assistant Treasurer, the
Secretary or an Assistant Secretary, of the Company, and delivered to the
Trustee.

     "COMPARABLE TREASURY ISSUE" means the United States Treasury security
selected by an Independent Investment Banker as having a maturity comparable to
the remaining term of the Securities to be redeemed that would be utilized, at
the time of selection and in accordance with customary financial practice, in
pricing new issues of corporate debt securities of comparable maturity to the
remaining term of such Securities. "Independent Investment Banker" means one of
the Reference Treasury Dealers appointed by the Trustee after consultation with
the Company.

     "COMPARABLE TREASURY PRICE" means, with respect to any redemption date, (i)
the average of the bid and asked prices for the Comparable Treasury Issue
(expressed in each case as a percentage of its principal amount) on the third
Business Day preceding such a redemption date, as set forth in the daily
statistical release (or any successor release) published by the Federal Reserve
Bank of New York and designated "Composite 3:30 p.m. Quotations for U.S.
Government Securities" or (ii) if such release (or any successor release) is not
published or does not contain such prices on such business day, the average of
all Reference Treasury Dealer Quotations for such redemption date.


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     "CONSOLIDATED NET ASSETS" means as of any particular time the aggregate
amount of assets (less applicable reserves and other properly deductible items)
after deducting therefrom all current liabilities except for (a) notes and loans
payable, (b) current maturities of long-term debt and (c) current maturities of
obligations under capital leases, all as set forth on the most recent
consolidated balance sheet of the Company and its consolidated Subsidiaries and
computed in accordance with generally accepted accounting principles and
practices as in effect on December 15, 1997.

     "CONVERSION EVENT" means the cessation of use of (i) a Foreign Currency
both by the government of the country which issued such currency and for the
settlement of transactions by a central bank or other public institutions of or
within the international banking community, (ii) the ECU both within the
European Monetary System and for the settlement of transactions by public
institutions of or within the European Communities or (iii) any currency unit
(or composite currency) other than the ECU for the purposes for which it was
established.

     "CORPORATE TRUST OFFICE" means the office of the Trustee at which, at any
particular time, its corporate trust business shall be principally administered,
which office at the date hereof is located at Two International Place, Corporate
Trust Division, Boston, MA 02110.

     "CORPORATION" includes corporations, associations, companies and business
trusts.

     "COUPON" means any interest coupon appertaining to a Bearer Security.

     "CUSTODIAN" has the meaning specified in Section 501.

     "DEFAULTED INTEREST" has the meaning specified in Section 307.

     "DOLLAR" or "$" means a dollar or other equivalent unit in such coin or
currency of the United States of America as at the time shall be legal tender
for the payment of public and private debts.

     "ECU" means the European Currency Unit as defined and revised from time to
time by the Council of the European Communities.

     "EUROCLEAR" means Morgan Guaranty Trust Company of New York, Brussels
office, or its successor as operator of the Euroclear System.

     "EUROPEAN COMMUNITIES" means the European Economic Community, the European
Coal and Steel Community and the European Atomic Energy Community.

     "EUROPEAN MONETARY SYSTEM" means the European Monetary System established
by the Resolution of December 5, 1978 of the Council of the European
Communities.


                                       4


<PAGE>   11


     "EVENT OF DEFAULT" has the meaning specified in Article Five.

     "FOREIGN CURRENCY" means any currency, currency unit or composite currency,
including, without limitation, the ECU issued by the government of one or more
countries other than the United States of America or by any recognized
confederation or association of such governments.

     "GAAP" means, except as otherwise provided herein, generally accepted
accounting principles, as in effect from time to time, as used in the United
States applied on a consistent basis.

     "GLOBAL SECURITY" means a Security evidencing all or a part of a series of
Securities issued to and registered in the name of the depository for such
series, or its nominee, in accordance with Section 305, and bearing the legend
prescribed in Section 203.

     "GOVERNMENT OBLIGATIONS" means securities which are (i) direct obligations
of the United States of America or the government which issued the Foreign
Currency in which the Securities of a particular series are payable, for the
payment of which its full faith and credit is pledged or (ii) obligations of a
Person controlled or supervised by and acting as an agency or instrumentality of
the United States of America or such government which issued the Foreign
Currency in which the Securities of such series are payable, the payment of
which is unconditionally guaranteed as a full faith and credit obligation by the
United States of America or such other government, which, in either case, are
not callable or redeemable at the option of the issuer thereof, and shall also
include a depository receipt issued by a bank or trust company as custodian with
respect to any such Government Obligation or a specific payment of interest on
or principal of any such Government Obligation held by such custodian for the
account of the holder of a depository receipt, PROVIDED that (except as required
by law) such custodian is not authorized to make any deduction from the amount
payable to the holder of such depository receipt from any amount received by the
custodian in respect of the Government Obligation or the specific payment of
interest on or principal of the Government Obligation evidenced by such
depository receipt.

     "GUARANTY" by any Person means any Obligation, contingent or otherwise, of
such Person guaranteeing any Indebtedness of any other Person (the "primary
obligor") in any manner, whether directly or indirectly, and including, without
limitation, every Obligation of such Person (i) to purchase or pay (or advance
or supply funds for the purchase or payment of) such Indebtedness or to purchase
(or to advance or supply funds for the purchase of) any security for the payment
of such Indebtedness, (ii) to purchase property, securities or services for the
purpose of assuring the holder of such Indebtedness of the payment of such
Indebtedness or (iii) to maintain working capital, equity capital or other
financial statement condition or liquidity of the primary obligor so as to
enable the primary obligor to pay such Indebtedness; PROVIDED, HOWEVER, that a
Guaranty by any Person shall not include endorsements by such Person for
collection or deposit, in either case in the ordinary course of 


                                       5


<PAGE>   12


business. The terms "Guaranteed," "Guaranteeing" and "Guarantor" shall have
meanings correlative to the foregoing.

     "HOLDER" means, in the case of a Registered Security, the Person in whose
name a Security is registered in the Security Register and, in the case of a
Bearer Security, the bearer thereof and, when used with respect to any coupon,
shall mean the bearer thereof.

     "INDEBTEDNESS" means, with respect to any Person, without duplication, (i)
any Obligation of such Person relating to any indebtedness of such Person (A)
for borrowed money (whether or not the recourse of the lender is to the whole of
the assets, of such person or only to a portion thereof), (B) evidenced by
notes, debentures or similar instruments (including purchase money obligations)
given in connection with the acquisition of any property or assets (other than
trade accounts payable for inventory or similar property acquired in the
ordinary course of business), including securities, for the payment of which
such Person is liable, directly or indirectly, or the payment of which is
secured by a lien, charge or encumbrance on property or assets of such Person,
(C) for goods, materials or services purchased in the ordinary course of
business (other than trade accounts payable arising in the ordinary course of
business), (D) with respect to letters of credit or bankers acceptances issued
for the account of such Person or performance, surety or similar bonds, (E) for
the payment of money relating to a Capitalized Lease Obligation or (F) under
interest rate swaps, caps or similar agreements and foreign exchange contracts,
currency swaps or similar agreements; (ii) any liability of others of the kind
described in the preceding clause (i), which such Person has Guaranteed or which
is otherwise its legal liability; and (iii) any and all deferrals, renewals,
extensions and refunding of, or amendments, modifications or supplements to, any
liability of the kind described in any of the preceding clauses (i) or (ii).

     "INDENTURE" means this instrument as originally executed or as it may be
supplemented or amended from time to time by one or more indentures supplemental
hereto entered into pursuant to the applicable provisions hereof, and shall
include the terms of particular series of Securities established as contemplated
by Section 301; PROVIDED, HOWEVER, that, if at any time more than one Person is
acting as Trustee under this instrument, "Indenture" shall mean, with respect to
any one or more series of Securities for which such Person is Trustee, this
instrument as originally executed or as it may be supplemented or amended from
time to time by one or more indentures supplemental hereto entered into pursuant
to the applicable provisions hereof and shall include the terms of the or those
particular series of Securities for which such Person is Trustee established as
contemplated by Section 301, exclusive, however, of any provisions or terms
which relate solely to other series of Securities for which such Person is
Trustee, regardless of when such terms or provisions were adopted, and exclusive
of any provisions or terms adopted by means of one or more indentures
supplemental hereto executed and delivered after such Person had become such
Trustee but to which such Person, as such Trustee, was not a party.


                                       6


<PAGE>   13


     "INDEXED SECURITY" means a Security the terms of which provide that the
principal amount thereof payable at Stated Maturity may be more or less than the
principal face amount thereof at original issuance.

     "INTEREST," when used with respect to an Original Issue Discount Security
which by its terms bears interest only after Maturity, shall mean interest
payable after Maturity.

     "INTEREST PAYMENT DATE," when used with respect to any Security, means the
Stated Maturity of an installment of interest on such Security.

     "MATURITY," when used with respect to any Security, means the date on which
the principal of such Security or an installment of principal becomes due and
payable as therein or herein provided, whether at the Stated Maturity or by
declaration of acceleration, notice of redemption, notice of option to elect
repayment or otherwise.

     "OBLIGATION" of any Person with respect to any specified Indebtedness means
any obligation of such Person to pay principal, premium, interest (including
interest accruing on or after the filing of any petition in bankruptcy or for
reorganization relating to such Person, whether or not a claim for such
post-petition interest is allowed in such Proceeding), penalties, reimbursement
or indemnification amounts, fees, expenses or other amounts relating to such
Indebtedness.

     "OFFICERS' CERTIFICATE" means a certificate signed by the Chairman of the
Board of Directors, the President or a Vice President and by the Treasurer, an
Assistant Treasurer, the Secretary or an Assistant Secretary of the Company, and
delivered to the Trustee.

     "OPINION OF COUNSEL" means a written opinion of counsel, who may be counsel
for the Company or who may be an employee of or other counsel for the Company
and who shall be satisfactory to the Trustee.

     "ORIGINAL ISSUE DISCOUNT SECURITY" means any Security which provides for an
amount less than the principal amount thereof to be due and payable upon a
declaration of acceleration of the Maturity thereof pursuant to Section 502.

     "OUTSTANDING," when used with respect to Securities, means, as of the date
of determination, all Securities theretofore authenticated and delivered under
this Indenture, EXCEPT:

          (i) Securities theretofore canceled by the Trustee or delivered to the
     Trustee for cancellation;

          (ii) Securities, or portions thereof, for whose payment or redemption
     (including repayment at the option of the Holder) money in the necessary
     amount has 


                                       7


<PAGE>   14


     been theretofore deposited with the Trustee or any Paying Agent (other than
     the Company) in trust or set aside and segregated in trust by the Company
     (if the Company shall act as its own Paying Agent) for the Holders of such
     Securities and any coupons appertaining thereto; PROVIDED, HOWEVER, that,
     if such Securities are to be redeemed, notice of such redemption has been
     duly given pursuant to this Indenture or provision therefor satisfactory to
     the Trustee has been made;

          (iii) Securities, except to the extent provided in Sections 1402 and
     1403, with respect to which the Company has effected defeasance and/or
     covenant defeasance as provided in Article Fourteen; and

          (iv) Securities which have been paid pursuant to Section 306 or in
     exchange for or in lieu of which other Securities have been authenticated
     and delivered pursuant to this Indenture, other than any such Securities in
     respect of which there shall have been presented to the Trustee proof
     satisfactory to it that such Securities are held by a bona fide purchaser
     in whose hands such Securities are valid obligations of the Company.

PROVIDED, HOWEVER, that in determining whether the Holders of the requisite
principal amount of the Outstanding Securities have given any request, demand,
authorization, direction, notice, consent or waiver hereunder or are present at
a meeting of Holders for quorum purposes, and for the purpose of making the
calculations required by TIA Section 313, (i) the principal amount of an
Original Issue Discount Security that may be counted in making such
determination or calculation and that shall be deemed to be Outstanding for such
purpose shall be equal to the amount of principal thereof that would be (or
shall have been declared to be) due and payable, at the time of such
determination, upon a declaration of acceleration of the maturity thereof
pursuant to Section 502, (ii) the principal amount of any Security denominated
in a Foreign Currency that may be counted in making such determination or
calculation and that shall be deemed Outstanding for such purpose shall be equal
to the Dollar equivalent, determined pursuant to Section 301 as of the date such
Security is originally issued by the Company, of the principal amount (or, in
the case of an Original Issue Discount Security, the Dollar equivalent as of
such date of original issuance of the amount determined as provided in clause
(i) above) of such Security, (iii) the principal amount of any Indexed Security
that may be counted in making such determination or calculation and that shall
be deemed outstanding for such purpose shall be equal to the principal face
amount of such Indexed Security at original issuance, unless otherwise provided
with respect to such Security pursuant to Section 301, and (iv) Securities owned
by the Company or any other obligor upon the Securities or any Affiliate of the
Company or of such other obligor shall be disregarded and deemed not to be
Outstanding, except that, in determining whether the Trustee shall be protected
in making such calculation or in relying upon any such request, demand,
authorization, direction, notice, consent or waiver, only Securities which the
Trustee knows to be so owned shall be so disregarded. Securities owned as
provided in clause (iv) above which have been pledged in good faith may be
regarded as Outstanding if the pledgee establishes to 


                                       8


<PAGE>   15


the satisfaction of the Trustee the pledgee's right so to act with respect to
such Securities and that the pledgee is not the Company or any other obligor
upon the Securities or any Affiliate of the Company or of such other obligor. In
case of a dispute as to such right, the advice of counsel shall be full
protection in respect of any decision made by the Trustee in accordance with
such advice.

     "PAYING AGENT" means any Person authorized by the Company to pay the
principal of (and premium or Make-Whole Amount, if any) or interest on any
Securities or coupons on behalf of the Company.

     "PERSON" means any individual, corporation, partnership, joint venture,
association, joint-stock company, trust, unincorporated organization or
government or any agency or political subdivision thereof.

     "PLACE OF PAYMENT," when used with respect to the Securities of or within
any series, means the place or places where the principal of (and premium or
Make-Whole Amount, if any) and interest on such Securities are payable as
specified as contemplated by Sections 301 and 1002.

     "PREDECESSOR SECURITY" of any particular Security means every previous
Security evidencing all or a portion of the same debt as that evidenced by such
particular Security; and, for the purposes of this definition, any Security
authenticated and delivered under Section 306 in exchange for or in lieu of a
mutilated, destroyed, lost or stolen Security or a Security to which a
mutilated, destroyed, lost or stolen coupon appertains shall be deemed to
evidence the same debt as the mutilated, destroyed, lost or stolen Security or
the Security to which the mutilated, destroyed, lost or stolen coupon
appertains.

     "PREFERRED STOCK" means, with respect to any Person, all capital stock
issued by such Person that are entitled to a preference or priority over any
other capital stock issued by such Person with respect to any distribution of
such Person's assets, whether by dividend or upon any voluntary or involuntary
liquidation, dissolution or winding up.

     "REDEMPTION DATE," when used with respect to any Security to be redeemed,
in whole or in part, means the date fixed for such redemption by or pursuant to
this Indenture.

     "REDEMPTION PRICE," when used with respect to any Security to be redeemed,
means the price at which it is to be redeemed pursuant to this Indenture.

     "REFERENCE TREASURY DEALER" means each of [_________________], and their
respective successors; provided, however, that if any of the foregoing shall
cease to be a primary U.S. Government securities dealer in New York City (a
"Primary Treasury Dealer"), the Company shall substitute therefor another
Primary Treasury Dealer.


                                       9


<PAGE>   16


     "REFERENCE TREASURY DEALER QUOTATIONS" means, with respect to each
Reference Treasury Dealer and any redemption date, the average, as determined by
such Treasury Dealer, of the bid and asked prices for the Comparable Treasury
Issue (expressed in each case as a percentage of its principal amount) quoted in
writing to the Trustee by such Reference Treasury Dealer at 5:00 p.m. on the
third business day preceding such redemption date.

     "REGISTERED SECURITY" shall mean any Security which is registered in the
Security Register.

     "REGULAR RECORD DATE" for the interest payable on any Interest Payment Date
on the Registered Securities of or within any series means the date specified
for that purpose as contemplated by Section 301, whether or not a Business Day.

     "REPAYMENT DATE" means, when used with respect to any Security to be repaid
at the option of the Holder, the date fixed for such repayment by or pursuant to
this Indenture.

     "REPAYMENT PRICE" means, when used with respect to any Security to be
repaid at the option of the Holder, the price at which it is to be repaid by or
pursuant to this Indenture.

     "RESPONSIBLE OFFICER," when used with respect to the Trustee, means any
officer in its Corporate Trust Office or any other officer of the Trustee
customarily performing functions similar to those performed by any of the above
designated officers and also means, with respect to a particular corporate trust
matter, any other officer to whom such matter is referred because of such
officer's knowledge and familiarity with the particular subject.

     "SECURITY" has the meaning stated in the first recital of this Indenture
and, more particularly, means any Security or Securities authenticated and
delivered under this Indenture; PROVIDED, HOWEVER, that, if at any time there is
more than one Person acting as Trustee under this Indenture, "Securities" with
respect to the Indenture as to which such Person is Trustee shall have the
meaning stated in the first recital of this Indenture and shall more
particularly mean Securities authenticated and delivered under this Indenture,
exclusive, however, of Securities of any series as to which such Person is not
Trustee.

     "SECURITY REGISTER" and "SECURITY REGISTRAR" have the respective meanings
specified in Section 305.

     "SIGNIFICANT SUBSIDIARY" means any Subsidiary which is a "significant
subsidiary" (as defined in Article I, Rule 1-02 of Regulation S-X, promulgated
under the Securities Act of 1933) of the Company.

     "SPECIAL RECORD DATE" for the payment of any Defaulted Interest on the
Registered Securities of or within any series means a date fixed by the Company
pursuant to Section 307.


                                       10


<PAGE>   17


     "STATED MATURITY," when used with respect to any Security or any
installment of principal thereof or interest thereon, means the date specified
in such Security or a coupon representing such installment of interest as the
fixed date on which the principal of such Security or such installment of
principal or interest is due and payable.

     "SUBSIDIARY" means a corporation a majority of the outstanding voting stock
of which is owned, directly or indirectly, by the Company or by one or more
other Subsidiaries of the Company. For the purposes of this definition, "voting
stock" means stock having voting power for the election of directors, whether at
all times or only so long as no senior class of stock has such voting power by
reason of any contingency.

     "TREASURY RATE" means, with respect to any redemption date, the rate per
annum equal to the semiannual equivalent yield to maturity of the Comparable
Treasury Issue, assuming a price for the Comparable Treasury Issue (expressed as
a percentage of its principal amount) equal to the Comparable Treasury Price for
such redemption date.

     "TRUST INDENTURE ACT" or "TIA" means the Trust Indenture Act of 1939, as
amended and as in force at the date as of which this Indenture was executed,
except as provided in Section 905.

     "TRUSTEE" means the Person named as the "Trustee" in the first paragraph of
this Indenture until a successor Trustee shall have become such pursuant to the
applicable provisions of this Indenture, and thereafter "Trustee" shall mean or
include each Person who is then a Trustee hereunder; PROVIDED, HOWEVER, that if
at any time there is more than one such Person, "Trustee" as used with respect
to the Securities of any series shall mean only the Trustee with respect to
Securities of that series.

     "UNITED STATES" means, unless otherwise specified with respect to any
Securities pursuant to Section 301, the United States of America (including the
states and the District of Columbia), its territories, its possessions and other
areas subject to its jurisdiction.

     "UNITED STATES PERSON" means, unless otherwise specified with respect to
any Securities pursuant to Section 301, an individual who is a citizen or
resident of the United States, a corporation, partnership or other entity
created or organized in or under the laws of the United States or an estate or
trust the income of which is subject to United States Federal income taxation
regardless of its source.

     "YIELD TO MATURITY" means the yield to maturity, computed at the time of
issuance of a Security (or, if applicable, at the most recent redetermination of
interest on such Security) and as set forth in such Security in accordance with
generally accepted United States bond yield computation principles.


                                       11


<PAGE>   18


     SECTION 102. COMPLIANCE CERTIFICATES AND OPINIONS. Upon any application or
request by the Company to the Trustee to take any action under any provision of
this Indenture, the Company shall furnish to the Trustee an Officers'
Certificate stating that all conditions precedent, if any, provided for in this
Indenture relating to the proposed action have been complied with and an Opinion
of Counsel stating that in the opinion of such counsel all such conditions
precedent, if any, have been complied with, except that in the case of any such
application or request as to which the furnishing of such documents is
specifically required by any provision of this Indenture relating to such
particular application or request, no additional certificate or opinion need be
furnished.

     Every certificate or opinion with respect to compliance with a condition or
covenant provided for in this Indenture (including certificates delivered
pursuant to Section 1008) shall include:

          (1) a statement that each individual signing such certificate or
     opinion has read such condition or covenant and the definitions herein
     relating thereto;

          (2) a brief statement as to the nature and scope of the examination or
     investigation upon which the statements or opinions contained in such
     certificate or opinion are based;

          (3) a statement that, in the opinion of each such individual, he has
     made such examination or investigation as is necessary to enable him to
     express an informed opinion as to whether or not such condition or covenant
     has been complied with; and

          (4) a statement as to whether, in the opinion of each such individual,
     such condition or covenant has been complied with.

     SECTION 103. FORM OF DOCUMENTS DELIVERED TO TRUSTEE. In any case where
several matters are required to be certified by, or covered by an opinion of,
any specified Person, it is not necessary that all such matters be certified by,
or covered by the opinion of, only one such Person, or that they be so certified
or covered by only one document, but one such Person may certify or give an
opinion with respect to some matters and one or more other such Persons as to
other matters, and any such Person may certify or give an opinion as to such
matters in one or several documents.

     Any certificate or opinion of an officer of the Company may be based,
insofar as it relates to legal matters, upon an Opinion of Counsel, or a
certificate or representations by counsel, unless such officer knows, or in the
exercise of reasonable care should know, that the opinion, certificate or
representations with respect to the matters upon which his certificate or
opinion is based are erroneous. Any such Opinion of Counsel or certificate or
representations may be based, insofar as it relates to factual matters, upon a
certificate or opinion of, or representations by, an officer or officers of the
Company stating that the information as to such 


                                       12


<PAGE>   19


factual matters is in the possession of the Company, unless such counsel knows,
or in the exercise of reasonable care should know, that the certificate or
opinion or representations with respect to such matters are erroneous.

     Where any Person is required to make, give or execute two or more
applications, requests, consents, certificates, statements, opinions or other
instruments under this Indenture, they may, but need not, be consolidated and
form one instrument.

     SECTION 104. ACTS OF HOLDERS. (a) Any request, demand, authorization,
direction, notice, consent, waiver or other action provided by this Indenture to
be given or taken by Holders of the Outstanding Securities of all series or one
or more series, as the case may be, may be embodied in and evidenced by one or
more instruments of substantially similar tenor signed by such Holders in person
or by agents duly appointed in writing. If Securities of a series are issuable
as Bearer Securities, any request, demand, authorization, direction, notice,
consent, waiver or other action provided by this Indenture to be given or taken
by Holders of Securities of such series may, alternatively, be embodied in and
evidenced by the record of Holders of Securities of such series voting in favor
thereof, either in person or by proxies duly appointed in writing, at any
meeting of Holders of Securities of such series duly called and held in
accordance with the provisions of Article Fifteen, or a combination of such
instruments and any such record. Except as herein otherwise expressly provided,
such action shall become effective when such instrument or instruments or record
or both are delivered to the Trustee and, where it is hereby expressly required,
to the Company. Such instrument or instruments and any such record (and the
action embodied therein and evidenced thereby) are herein sometimes referred to
as the "Act" of the Holders signing such instrument or instruments or so voting
at any such meeting. Proof of execution of any such instrument or of a writing
appointing any such agent, or of the holding by any Person of a Security, shall
be sufficient for any purpose of this Indenture and conclusive in favor of the
Trustee and the Company and any agent of the Trustee or the Company, if made in
the manner provided in this Section. The record of any meeting of Holders of
Securities shall be proved in the manner provided in Section 1506.

     (b) The fact and date of the execution by any Person of any such instrument
or writing may be proved by the affidavit of a witness of such execution or by a
certificate of a notary public or other officer authorized by law to take
acknowledgments of deeds, certifying that the individual signing such instrument
or writing acknowledged to him the execution thereof. Where such execution is by
a signer acting in a capacity other than his individual capacity, such
certificate or affidavit shall also constitute sufficient proof of his
authority. The fact and date of the execution of any such instrument or writing,
or the authority of the Person executing the same, may also be proved in any
other reasonable manner which the Trustee deems sufficient.


                                       13


<PAGE>   20


     (c) The ownership of Registered Securities shall be proved by the Security
Register. As to any matter relating to beneficial ownership interests in any
Global Security, the appropriate depository's records shall be dispositive for
purposes of this Indenture.

     (d) The ownership of Bearer Securities may be proved by the production of
such Bearer Securities or by a certificate executed, as depository, by any trust
company, bank, banker or other depository, wherever situated, if such
certificate shall be deemed by the Trustee to be satisfactory, showing that at
the date therein mentioned such Person had on deposit with such depository, or
exhibited to it, the Bearer Securities therein described; or such facts may be
proved by the certificate or affidavit of the Person holding such Bearer
Securities, if such certificate or affidavit is deemed by the Trustee to be
satisfactory. The Trustee and the Company may assume that such ownership of any
Bearer Security continues until (1) another certificate or affidavit bearing a
later date issued in respect of the same Bearer Security is produced, or (2)
such Bearer Security is produced to the Trustee by some other Person, or (3)
such Bearer Security is surrendered in exchange for a Registered Security, or
(4) such Bearer Security is no longer Outstanding. The ownership of Bearer
Securities may also be proved in any other manner which the Trustee deems
sufficient.

     (e) If the Company shall solicit from the Holders of Registered Securities
any request, demand, authorization, direction, notice, consent, waiver or other
Act, the Company may, at its option, in or pursuant to a Board Resolution, fix
in advance a record date for the determination of Holders entitled to give such
request, demand, authorization, direction, notice, consent, waiver or other Act,
but the Company shall have no obligation to do so. Notwithstanding TIA Section
316(c), such record date shall be the record date specified in or pursuant to
such Board Resolution, which shall be a date not earlier than the date 30 days
prior to the first solicitation of Holders generally in connection therewith and
not later than the date such solicitation is completed. If such a record date is
fixed, such request, demand, authorization, direction, notice, consent, waiver
or other Act may be given before or after such record date, but only the Holders
of record at the close of business on such record date shall be deemed to be
Holders for the purposes of determining whether Holders of the requisite
proportion of Outstanding Securities have authorized or agreed or consented to
such request, demand, authorization, direction, notice, consent, waiver or other
Act, and for that purpose the Outstanding Securities shall be computed as of
such record date; PROVIDED that no such authorization, agreement or consent by
the Holders on such record date shall be deemed effective unless it shall become
effective pursuant to the provisions of this Indenture not later than eleven
months after the record date.

     (f) Any request, demand, authorization, direction, notice, consent, waiver
or other Act of the Holder of any Security shall bind every future Holder of the
same Security and the Holder of every Security issued upon the registration of
transfer thereof or in exchange therefor or in lieu thereof in respect of
anything done, omitted or suffered to be done by the Trustee, any Security
Registrar, any Paying Agent, any Authenticating Agent or the Company in reliance
thereon, whether or not notation of such action is made upon such Security.


                                       14


<PAGE>   21


     SECTION 105. NOTICES, ETC., TO TRUSTEE AND COMPANY. Any request, demand,
authorization, direction, notice, consent, waiver or Act of Holders or other
document provided or permitted by this Indenture to be made upon, given or
furnished to, or filed with,

          (1) the Trustee by any Holder or by the Company shall be sufficient
     for every purpose hereunder if made, given, furnished or filed in writing
     to or with the Trustee at the address specified in the first paragraph of
     this Indenture; or

          (2) the Company by the Trustee or by any Holder shall be sufficient
     for every purpose hereunder (unless otherwise herein expressly provided) if
     in writing and mailed, first class postage prepaid, to the Company
     addressed to it at the address of its principal office specified in the
     first paragraph of this Indenture or at any other address previously
     furnished in writing to the Trustee by the Company, Attention: Chief
     Financial Officer (with a copy to the Company's General Counsel), or

          (3) either the Trustee or the Company, by the other party, shall be
     sufficient for every purpose hereunder if given by facsimile transmission,
     receipt confirmed by telephone followed by an original copy delivered by
     guaranteed overnight courier; if to the Trustee at facsimile number
     (617) 664-5371; and if to the Company at facsimile number (508) 839-7500.

     SECTION 106. NOTICE TO HOLDERS; WAIVER. Where this Indenture provides for
notice of any event to Holders of Registered Securities by the Company or the
Trustee, such notice shall be sufficiently given (unless otherwise herein
expressly provided) if in writing and mailed, first-class postage prepaid, to
each such Holder affected by such event, at his address as it appears in the
Security Register, not later than the latest date, if any, and not earlier than
the earliest date, if any, prescribed for the giving of such notice. In any case
where notice to Holders of Registered Securities is given by mail, neither the
failure to mail such notice, nor any defect in any notice so mailed, to any
particular Holder shall affect the sufficiency of such notice with respect to
other Holders of Registered Securities or the sufficiency of any notice to
Holders of Bearer Securities given as provided herein. Any notice mailed to a
Holder in the manner herein prescribed shall be conclusively deemed to have been
received by such Holder, whether or not such Holder actually receives such
notice.

     If by reason of the suspension of or irregularities in regular mail service
or by reason of any other cause it shall be impracticable to give such notice by
mail, then such notification to Holders of Registered Securities as shall be
made with the approval of the Trustee shall constitute a sufficient notification
to such Holders for every purpose hereunder.

     Except as otherwise expressly provided herein or otherwise specified with
respect to any Securities pursuant to Section 301, where this Indenture provides
for notice to Holders of Bearer Securities of any event, such notice shall be
sufficiently given if published in an Authorized Newspaper in The City of New
York and in such other city or cities as may be 


                                       15


<PAGE>   22


specified in such Securities on a Business Day, such publication to be not later
than the latest date, if any, and not earlier than the earliest date, if any,
prescribed for the giving of such notice. Any such notice shall be deemed to
have been given on the date of such publication or, if published more than once,
on the date of the first such publication.

     If by reason of the suspension of publication of any Authorized Newspaper
or Authorized Newspapers or by reason of any other cause it shall be
impracticable to publish any notice to Holders of Bearer Securities as provided
above, then such notification to Holders of Bearer Securities as shall be given
with the approval of the Trustee shall constitute sufficient notice to such
Holders for every purpose hereunder. Neither the failure to give notice by
publication to any particular Holder of Bearer Securities as provided above, nor
any defect in any notice so published, shall affect the sufficiency of such
notice with respect to other Holders of Bearer Securities or the sufficiency of
any notice to Holders of Registered Securities given as provided herein.

     Any request, demand, authorization, direction, notice, consent or waiver
required or permitted under this Indenture shall be in the English language,
except that any published notice may be in an official language of the country
of publication.

     Where this Indenture provides for notice in any manner, such notice may be
waived in writing by the Person entitled to receive such notice, either before
or after the event, and such waiver shall be the equivalent of such notice.
Waivers of notice by Holders shall be filed with the Trustee, but such filing
shall not be a condition precedent to the validity of any action taken in
reliance upon such waiver.

     SECTION 107. COUNTERPARTS; EFFECT OF HEADINGS AND TABLE OF CONTENTS. This
Indenture may be executed in any number of counterparts, each of which so
executed shall be deemed to be an original, but all such counterparts shall
together constitute but one and the same Indenture. The Article and Section
headings herein and the Table of Contents are for convenience only and shall not
affect the construction hereof.

     SECTION 108. SUCCESSORS AND ASSIGNS. All covenants and agreements in this
Indenture by the Company shall bind its successors and assigns, whether so
expressed or not.

     SECTION 109. SEVERABILITY CLAUSE. In case any provision in this Indenture
or in any Security or coupon shall be invalid, illegal or unenforceable, the
validity, legality and enforceability of the remaining provisions shall not in
any way be affected or impaired thereby.

     SECTION 110. BENEFITS OF INDENTURE. Nothing in this Indenture or in the
Securities or coupons, express or implied, shall give to any Person, other than
the parties hereto, any Security Registrar, any Paying Agent, any Authenticating
Agent and their successors hereunder and the Holders any benefit or any legal or
equitable right, remedy or claim under this Indenture.


                                       16


<PAGE>   23


     SECTION 111. GOVERNING LAW. This Indenture and the Securities and coupons
shall be governed by and construed in accordance with the law of the State of
New York. This Indenture is subject to the provisions of the TIA that are
required to be part of this Indenture and shall, to the extent applicable, be
governed by such provisions.

     SECTION 112. LEGAL HOLIDAYS. In any case where any Interest Payment Date,
Redemption Date, Repayment Date, sinking fund payment date, Stated Maturity or
Maturity of any Security or the last date on which a Holder has the right to
exchange a Security shall not be a Business Day at any Place of Payment, then
(notwithstanding any other provision of this Indenture or any Security or coupon
other than a provision in the Securities of any series which specifically states
that such provision shall apply in lieu hereof), payment of interest or
principal (and premium or Make-Whole Amount, if any) or exchange of such
security need not be made at such Place of Payment on such date, but (except as
otherwise provided in the supplemental indenture with respect to such Security)
may be made on the next succeeding Business Day at such Place of Payment with
the same force and effect as if made on the Interest Payment Date, Redemption
Date, Repayment Date or sinking fund payment date, or at the Stated Maturity or
Maturity, or on such last day for exchange, provided that no interest shall
accrue on the amount so payable for the period from and after such Interest
Payment Date, Redemption Date, Repayment Date, sinking fund payment date, Stated
Maturity or Maturity, as the case may be.

     SECTION 113. IMMUNITY OF STOCKHOLDERS, DIRECTORS, OFFICERS AND AGENTS OF
THE COMPANY. No recourse under or upon any obligation, covenant or agreement
contained in this Indenture, or in any Security, or because of any indebtedness
evidenced thereby, shall be had against any past, present or future stockholder,
employee, officer or director, as such, of the Company or of any successor,
either directly or through the Company or any successor, under any rule of law,
statute or constitutional provision or by the enforcement of any assessment or
by any legal or equitable proceeding or otherwise, all such liability being
expressly waived and released by the acceptance of the Securities by the Holders
and as part of the consideration for the issue of the Securities.


                                       17


<PAGE>   24


     SECTION 114. CONFLICT WITH TRUST INDENTURE ACT. If any provision hereof
limits, qualifies or conflicts with another provision hereof which is required
or deemed to be included in this Indenture by any of the provisions of the Trust
Indenture Act, such required provision shall control. If any provision of this
Indenture modifies or excludes any provision of the Trust Indenture Act that may
be so modified or excluded, the latter provision shall be deemed to apply to
this Indenture as so modified or to be excluded, as the case may be.

                         ARTICLE TWO - SECURITIES FORMS

     SECTION 201. FORMS OF SECURITIES. The Registered Securities, if any, of
each series and the Bearer Securities, if any, of each series and related
coupons shall be substantially in the form of EXHIBIT A hereto or in such other
form as shall be established in one or more indentures supplemental hereto or
approved from time to time by or pursuant to a Board Resolution in accordance
with Section 301, shall have such appropriate insertions, omissions,
substitutions and other variations as are required or permitted by this
Indenture or any indenture supplemental hereto, and may have such letters,
numbers or other marks of identification or designation and such legends or
endorsements placed thereon as the Company may deem appropriate and as are not
inconsistent with the provisions of this Indenture, or as may be required to
comply with any law or with any rule or regulation made pursuant thereto or with
any rule or regulation of any stock exchange on which the Securities may be
listed, or to conform to usage.

     Unless otherwise specified as contemplated by Section 301, Bearer
Securities shall have interest coupons attached.

     The definitive Securities and coupons shall be printed, lithographed or
engraved or produced by any combination of these methods on a steel engraved
border or steel engraved borders or mechanically reproduced on safety paper or
may be produced in any other manner, all as determined by the officers executing
such Securities or coupons, as evidenced by their execution of such Securities
or coupons.

     SECTION 202. FORM OF TRUSTEE'S CERTIFICATE OF AUTHENTICATION. Subject to
Section 611, the Trustee's certificate of authentication shall be in
substantially the following form:


                                       18


<PAGE>   25


     This is one of the Securities of the series designated therein referred to
in the within-mentioned Indenture.

                                           STATE STREET BANK AND TRUST 
                                           COMPANY
                                             as Trustee

Dated: ______________                      By:
                                              -----------------------------
                                                   Authorized Signatory

     SECTION 203. SECURITIES ISSUABLE IN GLOBAL FORM. If Securities of or
within a series are issuable in the form of one or more Global Securities, then,
notwithstanding clause (8) of Section 301 and the provisions of Section 302, any
such Global Security or Securities may provide that it or they shall represent
the aggregate amount of all Outstanding Securities of such series (or such
lesser amount as is permitted by the terms thereof) from time to time endorsed
thereon and may also provide that the aggregate amount of Outstanding Securities
of such series represented thereby may from time to time be increased or
decreased to reflect exchanges. Any endorsement of any Global Security to
reflect the amount, or any increase or decrease in the amount, or changes in the
rights of Holders thereof, of Outstanding Securities represented thereby shall
be made by the Trustee in such manner or by such Person or Persons as shall be
specified therein or in the Company Order to be delivered to the Trustee
pursuant to Section 303 or 304. Subject to the provisions of Section 303 and, if
applicable, Section 304, the Trustee shall deliver and redeliver any Global
Security in permanent global form in the manner and upon instructions given by
the Person or Persons specified therein or in the applicable Company Order. If a
Company Order pursuant to Section 303 or 304 has been, or simultaneously is,
delivered, any instructions by the Company with respect to endorsement or
delivery or redelivery of a Global Security shall be in writing but need not
comply with Section 102 and need not be accompanied by an Opinion of Counsel.

     The provisions of the last sentence of Section 303 shall apply to any
Security represented by a Global Security if such Security was never issued and
sold by the Company and the Company delivers to the Trustee the Global Security
together with written instructions (which need not comply with Section 102 and
need not be accompanied by an Opinion of Counsel) with regard to the reduction
in the principal amount of Securities represented thereby, together with the
written statement contemplated by the last sentence of Section 303.

     Notwithstanding the provisions of Section 307, unless otherwise specified
as contemplated by Section 301, payment of principal of and any premium or
Make-Whole Amount, if any, and interest on any Global Security in permanent
global form shall be made to the registered Holder thereof.


                                       19


<PAGE>   26


     Notwithstanding the provisions of Section 308 and except as provided in the
preceding paragraph, the Company, the Trustee and any agent of the Company and
the Trustee shall treat as the Holder of such principal amount of Outstanding
Securities represented by a permanent Global Security (i) in the case of a
permanent Global Security in registered form, the Holder of such permanent
Global Security in registered form, or (ii) in the case of a permanent Global
Security in bearer form, Euroclear or CEDEL.

     Any Global Security authenticated and delivered hereunder shall bear a
legend in substantially the following form:

          "This Security is a Global Security within the meaning set forth in
          the Indenture hereinafter referred to and is registered in the name of
          a Depository or a nominee of a Depository. This Security is
          exchangeable for Securities registered in the name of a person other
          than the Depository or its nominee only in the limited circumstances
          described in the Indenture, and may not be transferred except as a
          whole by the Depository to a nominee of the Depository or by a nominee
          of the Depository to the Depository or another nominee of the
          Depository or by the Depository or its nominee to a successor
          Depository or its nominee."

                         ARTICLE THREE - THE SECURITIES

     SECTION 301. AMOUNT UNLIMITED; ISSUABLE IN SERIES. The aggregate principal
amount of Securities which may be authenticated and delivered under this
Indenture is unlimited.

     The Securities may be issued in one or more series. There shall be
established in one or more Board Resolutions or pursuant to authority granted by
one or more Board Resolutions and, subject to Section 303, set forth in an
Officers' Certificate, or established in one or more indentures supplemental
hereto, prior to the issuance of Securities of any series:

          (1) The title of the Securities of the series (which shall distinguish
     the Securities of such series from all other series of Securities);

          (2) Any limit upon the aggregate principal amount of the Securities of
     the series that may be authenticated and delivered under this Indenture
     (except for Securities authenticated and delivered upon registration of
     transfer of, or in exchange for, or in lieu of, other Securities of the
     series pursuant to Section 304, 305, 306, 906, 1107 or 1305);


                                       20


<PAGE>   27


          (3) The price (expressed as a percentage of the principal amount
     thereof) at which such Securities will be issued and, if other than the
     principal amount thereof, the portion of the principal amount thereof
     payable upon declaration of acceleration of the maturity thereof;

          (4) The date or dates, or the method for determining such date or
     dates, on which the principal of such Securities will be payable;

          (5) The rate or rates (which may be fixed or variable), or the method
     by which such rate or rates shall be determined, at which such Securities
     will bear interest, if any;

          (6) The date or dates, or the method for determining such date or
     dates, from which any such interest will accrue, the dates on which any
     such interest will be payable, the record dates for such interest payment
     dates, or the method by which such dates shall be determined, the persons
     to whom such interest shall be payable, and the basis upon which interest
     shall be calculated if other than that of a 360-day year of twelve 30-day
     months;

          (7) The place or places where the principal of (and premium, if any)
     and interest, if any, on such Securities will be payable, where such
     Securities may be surrendered for registration of transfer or exchange and
     where notices or demands to or upon the Company in respect of such
     Securities and this Indenture may be served;

          (8) The period or periods, if any, within which, the price or prices
     at which and the other terms and conditions upon which such Securities may,
     pursuant to any optional or mandatory redemption provisions, be redeemed,
     as a whole or in part, at the option of the Company;

          (9) The obligation, if any, of the Company to redeem, repay or
     purchase such Securities pursuant to any sinking fund or analogous
     provision or at the option of a holder thereof, and the period or periods
     within which, the price or prices at which and the other terms and
     conditions upon which such Securities will be redeemed, repaid or
     purchased, as a whole or in part, pursuant to such obligation;

          (10) If other than Dollars, the currency or currencies in which such
     Securities are denominated and payable, which may be a foreign currency or
     units of two or more foreign currencies or a composite currency or
     currencies, the manner of determining the equivalent thereof in Dollars for
     purposes of the definition of "Outstanding" in Section 101, and the terms
     and conditions relating thereto;

          (11) Whether the amount of payments of principal of (and premium or
     Make-Whole Amount, if any, including any amount due upon redemption, if
     any) or 


                                       21


<PAGE>   28


     interest, if any, on such Securities may be determined with reference to an
     index, formula or other method (which index, formula or method may, but
     need not be, based on the yield on or trading price of other securities,
     including United States Treasury securities or on a currency, currencies,
     currency unit or units, or composite currency or currencies) and the manner
     in which such amounts shall be determined;

          (12) Whether the principal of (and premium, if any) or interest on the
     Securities of the series are to be payable, at the election of the Company
     or a holder thereof, in a currency or currencies, currency unit or units or
     composite currency or currencies other than that in which such Securities
     are denominated or stated to be payable, the period or periods within
     which, and the terms and conditions upon which, such election may be made,
     and the time and manner of, and identity of the exchange rate agent with
     responsibility for, determining the exchange rate between the currency or
     currencies, currency unit or units or composite currency or currencies in
     which such Securities are denominated or stated to be payable and the
     currency or currencies, currency unit or units or composite currency or
     currencies in which such Securities are to be so payable;

          (13) Provisions, if any, granting special rights to the holders of
     Securities of the series upon the occurrence of such events as may be
     specified;

          (14) Any deletions from, modifications of or additions to the Events
     of Default or covenants of the Company with respect to Securities of the
     series, whether or not such Events of Default or covenants are consistent
     with the Events of Default or covenants set forth herein;

          (15) Whether and under what circumstances the Company will pay any
     additional amounts on such Securities in respect of any tax, assessment or
     governmental charge and, if so, whether the Company will have the option to
     redeem such Securities in lieu of making such payment;

          (16) Whether Securities of the series are to be issuable as Registered
     Securities, Bearer Securities (with or without coupons) or both, any
     restrictions applicable to the offer, sale or delivery of Bearer Securities
     and the terms upon which Bearer Securities of the series may be exchanged
     for Registered Securities of the series and vice versa (if permitted by
     applicable laws and regulations), whether any Securities of the series are
     to be issuable initially in temporary global form and whether any
     Securities of the series are to be issuable in permanent global form with
     or without coupons and, if so, whether beneficial owners of interests in
     any such permanent global Security may exchange such interests for
     Securities of such series and of like tenor of any authorized form and
     denomination and the circumstances under which any such exchanges may
     occur, if other than in the manner provided in the Indenture, and, if


                                       22


<PAGE>   29


     Registered Securities of the series are to be issuable as a Global
     Security, the identity of the depository for such series;

          (17) The date as of which any Bearer Securities of the series and any
     temporary Global Security representing outstanding Securities of the series
     shall be dated if other than the date of original issuance of the first
     Security of the series to be issued;

          (18) The Person to whom any interest on any Registered Security of the
     series shall be payable, if other than the Person in whose name that
     Security (or one or more Predecessor Securities) is registered at the close
     of business on the Regular Record Date for such interest, the manner in
     which, or the Person to whom, any interest on any Bearer Security of the
     series shall be payable, if otherwise than upon presentation and surrender
     of the coupons appertaining thereto as they severally mature, and the
     extent to which, or the manner in which, any interest payable on a
     temporary Global Security on an Interest Payment Date will be paid if other
     than in the manner provided herein;

          (19) The applicability, if any, of the defeasance and covenant
     defeasance provisions of Article Fourteen hereof to the Securities of the
     series;

          (20) If the Securities of such series are to be issuable in definitive
     form (whether upon original issue or upon exchange of a temporary Security
     of such series) only upon receipt of certain certificates or other
     documents or satisfaction of other conditions, then the form and/or terms
     of such certificates, documents or conditions; and

          (21) Any other terms of the series (which terms shall not be
     inconsistent with the provisions of this Indenture).

     All Securities of any one series and the coupons appertaining to any Bearer
Securities of such series shall be substantially identical except, in the case
of Registered Securities, as to denomination and except as may otherwise be
provided in or pursuant to such Board Resolution (subject to Section 303) and
set forth in such Officers' Certificate or in any such indenture supplemental
hereto. All Securities of any one series need not be issued at the same time
and, unless otherwise provided, a series may be reopened, without the consent of
the Holders, for issuances of additional Securities of such series.

     If any of the terms of the Securities of any series are established by
action taken pursuant to one or more Board Resolutions, a copy of an appropriate
record of such action(s) shall be certified by the Secretary or an Assistant
Secretary of the Company and delivered to the Trustee at or prior to the
delivery of the Officers' Certificate setting forth the terms of the Securities
of such series.


                                       23


<PAGE>   30


     SECTION 302. DENOMINATIONS. The Securities of each series shall be
issuable in such denominations as shall be specified as contemplated by Section
301. With respect to Securities of any series denominated in Dollars, in the
absence of any such provisions with respect to the Securities of any series, the
Securities of such series, other than Global Securities (which may be of any
denomination), shall be issuable in denominations of $1,000 and any integral
multiple thereof.

     SECTION 303. EXECUTION, AUTHENTICATION, DELIVERY AND DATING. The
Securities and any coupons appertaining thereto shall be executed on behalf of
the Company by its Chairman of the Board, its President or one of its Vice
Presidents, under its corporate seal reproduced thereon, and attested by its
Secretary or one of its Assistant Secretaries. The signature of any of these
officers on the Securities and coupons may be manual or facsimile signatures of
the present or any future such authorized officer and may be imprinted or
otherwise reproduced on the Securities.

     Securities or coupons bearing the manual or facsimile signatures of
individuals who were at any time the proper officers of the Company shall bind
the Company, notwithstanding that such individuals or any of them have ceased to
hold such offices prior to the authentication and delivery of such Securities or
did not hold such offices at the date of such Securities or coupons.

     At any time and from time to time after the execution and delivery of this
Indenture, the Company may deliver Securities of any series, together with any
coupon appertaining thereto, executed by the Company to the Trustee for
authentication, together with a Company Order for the authentication and
delivery of such Securities, and the Trustee in accordance with the Company
Order shall authenticate and deliver such Securities; PROVIDED, HOWEVER, that,
in connection with its original issuance, no Bearer Security shall be mailed or
otherwise delivered to any location in the United States; and PROVIDED FURTHER
that, unless otherwise specified with respect to any series of Securities
pursuant to Section 301, a Bearer Security may be delivered in connection with
its original issuance only if the Person entitled to receive such Bearer
Security shall have furnished a certificate to Euroclear or CEDEL, as the case
may be, in the form set forth in Exhibit B-1 to this Indenture or such other
certificate as may be specified with respect to any series of Securities
pursuant to Section 301, dated no earlier than 15 days prior to the earlier of
the date on which such Bearer Security is delivered and the date on which any
temporary Security first becomes exchangeable for such Bearer Security in
accordance with the terms of such temporary Security and this Indenture. If any
Security shall be represented by a permanent global Bearer Security, then, for
purposes of this Section and Section 304, the notation of a beneficial owner's
interest therein upon original issuance of such Security or upon exchange of a
portion of a temporary Global Security shall be deemed to be delivery in
connection with its original issuance of such beneficial owner's interest in
such permanent Global Security. Except as permitted by Section 306, the Trustee
shall not authenticate and deliver any Bearer Security unless all appurtenant
coupons for interest then matured have been detached and canceled.


                                       24


<PAGE>   31


     If all the Securities of any series are not to be issued at one time and if
the Board Resolution or supplemental indenture establishing such series shall so
permit, such Company Order may set forth procedures acceptable to the Trustee
for the issuance of such Securities and determining the terms of particular
Securities of such series, such as interest rate or formula, maturity date, date
of issuance and date from which interest shall accrue. In authenticating such
Securities, and accepting the additional responsibilities under this Indenture
in relation to such Securities, the Trustee shall be entitled to receive, and
(subject to TIA Section 315(a) through 315(d)) shall be fully protected in
relying upon,

          (i) an Opinion of Counsel stating that

               (a) the form or forms of such Securities and any coupons have
          been established in conformity with the provisions of this Indenture;

               (b) the terms of such Securities and any coupons have been
          established in conformity with the provisions of this Indenture; and

               (c) such Securities, together with any coupons appertaining
          thereto, when completed by appropriate insertions and executed and
          delivered by the Company to the Trustee for authentication in
          accordance with this Indenture, authenticated and delivered by the
          Trustee in accordance with this Indenture and issued by the Company in
          the manner and subject to any conditions specified in such Opinion of
          Counsel, will constitute legal, valid and legally binding obligations
          of the Company, enforceable in accordance with their terms, subject to
          applicable bankruptcy, insolvency, fraudulent transfer, reorganization
          and other similar laws of general applicability relating to or
          affecting the enforcement of creditors' rights generally and to
          general equitable principles; and

          (ii) an Officers' Certificate stating that all conditions precedent
     provided for in this Indenture relating to the issuance of the Securities
     have been complied with and that, to the best of the knowledge of the
     signers of such certificate, that no Event of Default with respect to any
     of the Securities shall have occurred and be continuing.

If such form or terms have been so established, the Trustee shall not be
required to authenticate such Securities if the issue of such Securities
pursuant to this Indenture will affect the Trustee's own rights, duties,
obligations or immunities under the Securities and this Indenture or otherwise
in a manner which is not reasonably acceptable to the Trustee.

     Notwithstanding the provisions of Section 301 and of the preceding
paragraph, if all the Securities of any series are not to be issued at one time,
it shall not be necessary to deliver an Officers' Certificate otherwise required
pursuant to Section 301 or a Company Order, or an Opinion of Counsel or an
Officers' Certificate otherwise required pursuant to the preceding 


                                       25


<PAGE>   32


paragraph at the time of issuance of each Security of such series, but such
order, opinion and certificates, with appropriate modifications to cover such
future issuances, shall be delivered at or before the time of issuance of the
first Security of such series.

     Each Registered Security shall be dated the date of its authentication and
each Bearer Security shall be dated as of the date specified as contemplated by
Section 301.

     No Security or coupon shall be entitled to any benefit under this Indenture
or be valid or obligatory for any purpose unless there appears on such Security
or Security to which such coupon appertains a certificate of authentication
substantially in the form provided for herein duly executed by the Trustee by
manual signature of an authorized signatory, and such certificate upon any
Security shall be conclusive evidence, and the only evidence, that such Security
has been duly authenticated and delivered hereunder and is entitled to the
benefits of this Indenture. Notwithstanding the foregoing, if any Security
(including a Global Security) shall have been authenticated and delivered
hereunder but never issued and sold by the Company, and the Company shall
deliver such Security to the Trustee for cancellation as provided in Section 309
together with a written statement (which need not comply with Section 102 and
need not be accompanied by an Opinion of Counsel) stating that such Security has
never been issued and sold by the Company, for all purposes of this Indenture
such Security shall be deemed never to have been authenticated and delivered
hereunder and shall never be entitled to the benefits of this Indenture.

     SECTION 304. TEMPORARY SECURITIES.

     (a) Pending the preparation of definitive Securities of any series, the
Company may execute, and upon Company Order the Trustee shall authenticate and
deliver, temporary Securities which are printed, lithographed, typewritten,
mimeographed or otherwise produced, in any authorized denomination,
substantially of the tenor of the definitive Securities in lieu of which they
are issued, in registered form, or, if authorized, in bearer form with one or
more coupons or without coupons, and with such appropriate insertions,
omissions, substitutions and other variations as the officers executing such
Securities may determine, as conclusively evidenced by their execution of such
Securities. In the case of Securities of any series, such temporary Securities
may be in global form.

     Except in the case of temporary Global Securities (which shall be exchanged
as otherwise provided herein or as otherwise provided in or pursuant to a Board
Resolution), if temporary Securities of any series are issued, the Company will
cause definitive Securities of that series to be prepared without unreasonable
delay. After the preparation of definitive Securities of such series, the
temporary Securities of such series shall be exchangeable for definitive
Securities of such series upon surrender of the temporary Securities of such
series at the office or agency of the Company in a Place of Payment for that
series, without charge to the Holder. Upon surrender for cancellation of any one
or more temporary Securities of any series (accompanied by any non-matured
coupons appertaining thereto), the Company shall 


                                       26


<PAGE>   33


execute and the Trustee shall authenticate and deliver in exchange therefor a
like principal amount of definitive Securities of the same series of authorized
denominations; PROVIDED, HOWEVER, that no definitive Bearer Security shall be
delivered in exchange for a temporary Registered Security; and PROVIDED FURTHER
that a definitive Bearer Security shall be delivered in exchange for a temporary
Bearer Security only in compliance with the conditions set forth in Section 303.
Until so exchanged, the temporary Securities of any series shall in all respects
be entitled to the same benefits under this Indenture as definitive Securities
of such series.

     (b) Unless otherwise provided in or pursuant to a Board Resolution, the
following provisions of this Section 304(b) shall govern the exchange of
temporary Securities other than through the facilities of The Depository Trust
Company. If any such temporary Security is issued in global form, then such
temporary Global Security shall, unless otherwise provided therein, be delivered
to the London office of a depository or common depository (the "Common
Depository"), for the benefit of Euroclear and CEDEL, for credit to the
respective accounts of the beneficial owners of such Securities (or to such
other accounts as they may direct).

     Without unnecessary delay but in any event not later than the date
specified in, or determined pursuant to the terms of, any such temporary Global
Security (the "Exchange Date"), the Company shall deliver to the Trustee
definitive Securities, in aggregate principal amount equal to the principal
amount of such temporary Global Security, executed by the Company. On or after
the Exchange Date, such temporary Global Security shall be surrendered by the
Common Depository to the Trustee, as the Company's agent for such purpose, to be
exchanged, in whole or from time to time in part, for definitive Securities
without charge, and the Trustee shall authenticate and deliver, in exchange for
each portion of such temporary Global Security, an equal aggregate principal
amount of definitive Securities of the same series of authorized denominations
and of like tenor as the portion of such temporary Global Security to be
exchanged. The definitive Securities to be delivered in exchange for any such
temporary Global Security shall be in bearer form, registered form, permanent
global bearer form or permanent global registered form, or any combination
thereof, as specified as contemplated by Section 301, and, if any combination
thereof is so specified, as requested by the beneficial owner thereof; PROVIDED,
HOWEVER, that, unless otherwise specified in such temporary Global Security,
upon such presentation by the Common Depository, such temporary Global Security
is accompanied by a certificate dated the Exchange Date or a subsequent date and
signed by Euroclear as to the portion of such temporary Global Security held for
its account then to be exchanged and a certificate dated the Exchange Date or a
subsequent date and signed by CEDEL as to the portion of such temporary Global
Security held for its account then to be exchanged in such form as may be
established pursuant to Section 301; and PROVIDED FURTHER that definitive Bearer
Securities shall be delivered in exchange for a portion of a temporary Global
Security only in compliance with the requirements of Section 303.


                                       27


<PAGE>   34


     Unless otherwise specified in such temporary Global Security, the interest
of a beneficial owner of Securities of a series in a temporary Global Security
shall be exchanged for definitive Securities of the same series and of like
tenor following the Exchange Date when the account holder instructs Euroclear or
CEDEL, as the case may be, to request such exchange on his behalf and delivers
to Euroclear or CEDEL, as the case may be, a certificate in the form set forth
in Exhibit B-1 to this Indenture (or in such other form as may be established
pursuant to Section 301), dated no earlier than 15 days prior to the Exchange
Date, copies of which certificate shall be available from the offices of
Euroclear and CEDEL, the Trustee, any Authenticating Agent appointed for such
series of Securities and each Paying Agent. Unless otherwise specified in such
temporary Global Security, any such exchange shall be made free of charge to the
beneficial owners of such temporary Global Security, except that a Person
receiving definitive Securities must bear the cost of insurance, postage,
transportation and the like unless such Person takes delivery of such definitive
Securities in person at the offices of Euroclear or CEDEL. Definitive Securities
in bearer form to be delivered in exchange for any portion of a temporary Global
Security shall be delivered only outside the United States.

     Until exchanged in full as hereinabove provided, the temporary Securities
of any series shall in all respects be entitled to the same benefits under this
Indenture as definitive Securities of the same series and of like tenor
authenticated and delivered hereunder, except that, unless otherwise specified
as contemplated by Section 301, interest payable on a temporary Global Security
on an Interest Payment Date for Securities of such series occurring prior to the
applicable Exchange Date shall be payable to Euroclear and CEDEL on such
Interest Payment Date upon delivery by Euroclear and CEDEL to the Trustee of a
certificate or certificates in the form set forth in Exhibit B-2 to this
Indenture (or in such other forms as may be established pursuant to Section
301), for credit without further interest on or after such Interest Payment Date
to the respective accounts of Persons who are the beneficial owners of such
temporary Global Security on such Interest Payment Date and who have each
delivered to Euroclear or CEDEL, as the case may be, a certificate dated no
earlier than 15 days prior to the Interest Payment Date occurring prior to such
Exchange Date in the form set forth as Exhibit B-1 to this Indenture (or in such
other forms as may be established pursuant to Section 301). Notwithstanding
anything to the contrary herein contained, the certifications made pursuant to
this paragraph shall satisfy the certification requirements of the preceding two
paragraphs of this Section 304(b) and of the third paragraph of Section 303 of
this Indenture and the interests of the Persons who are the beneficial owners of
the temporary Global Security with respect to which such certification was made
will be exchanged for definitive Securities of the same series and of like tenor
on the Exchange Date or the date of certification if such date occurs after the
Exchange Date, without further act or deed by such beneficial owners. Except as
otherwise provided in this paragraph, no payments of principal or interest owing
with respect to a beneficial interest in a temporary Global Security will be
made unless and until such interest in such temporary Global Security shall have
been exchanged for an interest in a definitive Security. Any interest so
received by Euroclear and CEDEL and not paid as herein provided shall be
returned to the Trustee prior to the expiration of two years after such Interest
Payment Date in order to be repaid to the Company.


                                       28


<PAGE>   35


     SECTION 305. REGISTRATION, REGISTRATION OF TRANSFER AND EXCHANGE. The
Company shall cause to be kept at the Corporate Trust Office of the Trustee or
in any office or agency of the Company in a Place of Payment a register for each
series of Securities (the registers maintained in such office or in any such
office or agency of the Company in a Place of Payment being herein sometimes
referred to collectively as the "Security Register") in which, subject to such
reasonable regulations as it may prescribe, the Company shall provide for the
registration of Registered Securities and of transfers of Registered Securities.
The Security Register shall be in written form or any other form capable of
being converted into written form within a reasonable time. The Trustee, at its
Corporate Trust Office, is hereby initially appointed "Security Registrar" for
the purpose of registering Registered Securities and transfers of Registered
Securities on such Security Register as herein provided. In the event that the
Trustee shall cease to be Security Registrar, it shall have the right to examine
the Security Register at all reasonable times.

     Subject to the provisions of this Section 305, upon surrender for
registration of transfer of any Registered Security of any series at any office
or agency of the Company in a Place of Payment for that series, the Company
shall execute, and the Trustee shall authenticate and deliver, in the name of
the designated transferee or transferees, one or more new Registered Securities
of the same series, of any authorized denominations and of a like aggregate
principal amount, bearing a number not contemporaneously outstanding, and
containing identical terms and provisions.

     Subject to the provisions of this Section 305, at the option of the Holder,
Registered Securities of any series may be exchanged for other Registered
Securities of the same series, of any authorized denomination or denominations
and of a like aggregate principal amount, containing identical terms and
provisions, upon surrender of the Registered Securities to be exchanged at any
such office or agency. Whenever any such Registered Securities are so
surrendered for exchange, the Company shall execute, and the Trustee shall
authenticate and deliver, the Registered Securities which the Holder making the
exchange is entitled to receive. Unless otherwise specified with respect to any
series of Securities as contemplated by Section 301, Bearer Securities may not
be issued in exchange for Registered Securities.

     If (but only if) permitted by the applicable Board Resolution and (subject
to Section 303) set forth in the applicable Officers' Certificate, or in any
indenture supplemental hereto, delivered as contemplated by Section 301, at the
option of the Holder, Bearer Securities of any series may be exchanged for
Registered Securities of the same series of any authorized denominations and of
a like aggregate principal amount and tenor, upon surrender of the Bearer
Securities to be exchanged at any such office or agency, with all unmatured
coupons and all matured coupons in default thereto appertaining. If the Holder
of a Bearer Security is unable to produce any such unmatured coupon or coupons
or matured coupon or coupons in default, any such permitted exchange may be
effected if the Bearer Securities are accompanied by payment in funds acceptable
to the Company in an amount equal to the face amount of such missing coupon or
coupons, or the surrender of such missing coupon or 


                                       29


<PAGE>   36


coupons may be waived by the Company and the Trustee if there is furnished to
them such security or indemnity as they may require to save each of them and any
Paying Agent harmless. If thereafter the Holder of such Security shall surrender
to any Paying Agent any such missing coupon in respect of which such a payment
shall have been made, such Holder shall be entitled to receive the amount of
such payment; PROVIDED, HOWEVER, that, except as otherwise provided in Section
1002, interest represented by coupons shall be payable only upon presentation
and surrender of those coupons at an office or agency located outside the United
States. Notwithstanding the foregoing, in case a Bearer Security of any series
is surrendered at any such office or agency in a permitted exchange for a
Registered Security of the same series and like tenor after the close of
business at such office or agency on (i) any Regular Record Date and before the
opening of business at such office or agency on the relevant Interest Payment
Date, or (ii) any Special Record Date and before the opening of business at such
office or agency on the related proposed date for payment of Defaulted Interest,
such Bearer Security shall be surrendered without the coupon relating to such
Interest Payment Date or proposed date for payment, as the case may be, and
interest or Defaulted Interest, as the case may be, will not be payable on such
Interest Payment Date or proposed date for payment, as the case may be, in
respect of the Registered Security issued in exchange for such Bearer Security,
but will be payable only to the Holder of such coupon when due in accordance
with the provisions of this Indenture. Whenever any Securities are so
surrendered for exchange, the Company shall execute, and the Trustee shall
authenticate and deliver, the Securities which the Holder making the exchange is
entitled to receive.

     Notwithstanding the foregoing, except as otherwise specified as
contemplated by Section 301, any permanent Global Security shall be exchangeable
only as provided in this paragraph. If the depository for any permanent Global
Security is The Depository Trust Company ("DTC"), then, unless the terms of such
Global Security expressly permit such Global Security to be exchanged in whole
or in part for definitive Securities, a Global Security may be transferred, in
whole but not in part, only to a nominee of DTC, or by a nominee of DTC to DTC,
or to a successor to DTC for such Global Security selected or approved by the
Company or to a nominee of such successor to DTC. If at any time DTC notifies
the Company that it is unwilling or unable to continue as depository for the
applicable Global Security or Securities or if at any time DTC ceases to be a
clearing agency registered under the Securities Exchange Act of 1934 if so
required by applicable law or regulation, the Company shall appoint a successor
depository with respect to such Global Security or Securities. If (x) a
successor depository for such Global Security or Securities is not appointed by
the Company within 90 days after the Company receives such notice or becomes
aware of such unwillingness, inability or ineligibility, (y) an Event of Default
has occurred and is continuing and the beneficial owners representing a majority
in principal amount of the applicable series of Securities represented by such
Global Security or Securities advise DTC to cease acting as depository for such
Global Security or Securities or (z) the Company, in its sole discretion,
determines at any time that all Outstanding Securities (but not less than all)
of any series issued or issuable in the form of one or more Global Securities
shall no longer be represented by such Global Security or Securities, then the
Company shall execute, and the Trustee shall 


                                       30


<PAGE>   37


authenticate and deliver definitive Securities of like series, rank, tenor and
terms in definitive form in an aggregate principal amount equal to the principal
amount of such Global Security or Securities in such names as DTC (or the
successor depository, as the case may be) shall instruct. If any beneficial
owner of an interest in a permanent global Security (as reflected on the books
and record of DTC or such other depository) is otherwise entitled to exchange
such interest for Securities of such series and of like tenor and principal
amount of another authorized form and denomination, as specified as contemplated
by Section 301 and provided that any applicable notice provided in the permanent
Global Security shall have been given, then without unnecessary delay but in any
event not later than the earliest date on which such interest may be so
exchanged, the Company shall execute, and the Trustee shall authenticate and
deliver definitive Securities in aggregate principal amount equal to the
principal amount of such beneficial owner's interest in such permanent Global
Security. On or after the earliest date on which such interests may be so
exchanged, such permanent Global Security shall be surrendered for exchange by
DTC or such other depository as shall be specified in the Company Order with
respect thereto to the Trustee, as the Company's agent for such purpose;
PROVIDED, HOWEVER, that no such exchanges may occur during a period beginning at
the opening of business 15 days before any selection of Securities to be
redeemed and ending on the relevant Redemption Date if the Security for which
exchange is requested may be among those selected for redemption; and PROVIDED
FURTHER that no Bearer Security delivered in exchange for a portion of a
permanent Global Security shall be mailed or otherwise delivered to any location
in the United States. If a Registered Security is issued in exchange for any
portion of a permanent Global Security after the close of business at the office
or agency where such exchange occurs on (i) any Regular Record Date and before
the opening of business at such office or agency on the relevant Interest
Payment Date, or (ii) any Special Record Date and the opening of business at
such office or agency on the related proposed date for payment of Defaulted
Interest, interest or Defaulted Interest, as the case may be, will not be
payable on such Interest Payment Date or proposed date for payment, as the case
may be, in respect of such Registered Security, but will be payable on such
Interest Payment Date or proposed date for payment, as the case may be, only to
the Person to whom interest in respect of such portion of such permanent Global
Security is payable in accordance with the provisions of this Indenture.

     All Securities issued upon any registration of transfer or exchange of
Securities shall be the valid obligations of the Company, evidencing the same
debt, and entitled to the same benefits under this Indenture, as the Securities
surrendered upon such registration of transfer or exchange.

     Every Registered Security presented or surrendered for registration of
transfer or for exchange or redemption shall (if so required by the Company or
the Security Registrar) be duly endorsed, or be accompanied by a written
instrument of transfer in form satisfactory to the Company and the Security
Registrar, duly executed by the Holder thereof or his attorney duly authorized
in writing.


                                       31


<PAGE>   38


     No service charge shall be made for any registration of transfer or
exchange of Securities, but the Company may require payment of a sum sufficient
to cover any tax or other governmental charge that may be imposed in connection
with any registration of transfer or exchange of Securities, other than
exchanges pursuant to Section 304, 906, 1107 or 1305 not involving any transfer.

     The Company or the Trustee, as applicable, shall not be required (i) to
issue, register the transfer of or exchange any Security if such Security may be
among those selected for redemption during a period beginning at the opening of
business 15 days before selection of the Securities to be redeemed under Section
1103 and ending at the close of business on (A) if such Securities are issuable
only as Registered Securities, the day of the mailing of the relevant notice of
redemption and (B) if such Securities are issuable as Bearer Securities, the day
of the first publication of the relevant notice of redemption or, if such
Securities are also issuable as Registered Securities and there is no
publication, the mailing of the relevant notice of redemption, or (ii) to
register the transfer of or exchange any Registered Security so selected for
redemption in whole or in part, except, in the case of any Registered Security
to be redeemed in part, the portion thereof not to be redeemed, or (iii) to
exchange any Bearer Security so selected for redemption except that such a
Bearer Security may be exchanged for a Registered Security of that series and
like tenor, PROVIDED that such Registered Security shall be simultaneously
surrendered for redemption, or (iv) to issue, register the transfer of or
exchange any Security which has been surrendered for repayment at the option of
the Holder, except the portion, if any, of such Security not to be so repaid.

     SECTION 306. MUTILATED, DESTROYED, LOST AND STOLEN SECURITIES. If any
mutilated Security or a Security with a mutilated coupon appertaining to it is
surrendered to the Trustee or the Company, together with, in proper cases, such
security or indemnity as may be required by the Company or the Trustee to save
each of them or any agent of either of them harmless, the Company shall execute
and the Trustee shall authenticate and deliver in exchange therefor a new
Security of the same series and principal amount, containing identical terms and
provisions and bearing a number not contemporaneously outstanding, with coupons
corresponding to the coupons, if any, appertaining to the surrendered Security.

     If there shall be delivered to the Company and to the Trustee (i) evidence
to their satisfaction of the destruction, loss or theft of any Security or
coupon, and (ii) such security or indemnity as may be required by them to save
each of them and any agent of either of them harmless, then, in the absence of
notice to the Company or the Trustee that such Security or coupon has been
acquired by a bona fide purchaser, the Company shall execute and upon its
request the Trustee shall authenticate and deliver, in lieu of any such
destroyed, lost or stolen Security or in exchange for the Security to which a
destroyed, lost or stolen coupon appertains (with all appurtenant coupons not
destroyed, lost or stolen), a new Security of the same series and principal
amount, containing identical terms and provisions and bearing a number not
contemporaneously outstanding, with coupons corresponding to the coupons, if
any, 


                                       32


<PAGE>   39


appertaining to such destroyed, lost or stolen Security or to the Security
to which such destroyed, lost or stolen coupon appertains.

     Notwithstanding the provisions of the previous two paragraphs, in case any
such mutilated, destroyed, lost or stolen Security or coupon has become or is
about to become due and payable, the Company in its discretion may, instead of
issuing a new Security, with coupons corresponding to the coupons, if any,
appertaining to such destroyed, lost or stolen Security or to the Security to
which such destroyed, lost or stolen coupon appertains, pay such Security or
coupon; PROVIDED, HOWEVER, that payment of principal of (and premium or
Make-Whole Amount, if any), and any interest on, Bearer Securities shall, except
as otherwise provided in Section 1002, be payable only at an office or agency
located outside the United States and, unless otherwise specified as
contemplated by Section 301, any interest on Bearer Securities shall be payable
only upon presentation and surrender of the coupons appertaining thereto.

     Upon the issuance of any new Security under this Section, the Company may
require the payment of a sum sufficient to cover any tax or other governmental
charge that may be imposed in relation thereto and any other expenses (including
the fees and expenses of the Trustee) connected therewith.

     Every new Security of any series with its coupons, if any, issued pursuant
to this Section in lieu of any destroyed, lost or stolen Security, or in
exchange for a Security to which a destroyed, lost or stolen coupon appertains,
shall constitute an original additional contractual obligation of the Company,
whether or not the destroyed, lost or stolen Security and its coupons, if any,
or the destroyed, lost or stolen coupon shall be at any time enforceable by
anyone, and shall be entitled to all the benefits of this Indenture equally and
proportionately with any and all other Securities of that series and their
coupons, if any, duly issued hereunder.

     The provisions of this Section are exclusive and shall preclude (to the
extent lawful) all other rights and remedies with respect to the replacement or
payment of mutilated, destroyed, lost or stolen Securities or coupons.

     SECTION 307. PAYMENT OF INTEREST; INTEREST RIGHTS PRESERVED. Except as
otherwise specified with respect to a series of Securities in accordance with
the provisions of Section 301, interest on any Registered Security that is
payable, and is punctually paid or duly provided for, on any Interest Payment
Date shall be paid to the Person in whose name that Security (or one or more
Predecessor Securities) is registered at the close of business on the Regular
Record Date for such interest at the office or agency of the Company maintained
for such purpose pursuant to Section 1002; PROVIDED, HOWEVER, that each
installment of interest on any Registered Security may at the Company's option
be paid by (i) mailing a check for such interest, payable to or upon the written
order of the Person entitled thereto pursuant to Section 308, to the address of
such Person as it appears on the Security Register or (ii) transfer to an
account maintained by the payee located inside the United States.


                                       33


<PAGE>   40


     Unless otherwise provided as contemplated by Section 301 with respect to
the Securities of any series, payment of interest may be made, in the case of a
Bearer Security, by transfer to an account maintained by the payee with a bank
located outside the United States.

     Unless otherwise provided as contemplated by Section 301, every permanent
global Security will provide that interest, if any, payable on any Interest
Payment Date will be paid to DTC, Euroclear and/or CEDEL, as the case may be,
with respect to that portion of such permanent global Security held for its
account by Cede & Co. or the Common Depository, as the case may be, for the
purpose of permitting such party to credit the interest received by it in
respect of such permanent global Security to the accounts of the beneficial
owners thereof.

     In case a Bearer Security of any series is surrendered in exchange for a
Registered Security of such series after the close of business (at an office or
agency in a Place of Payment for such series) on any Regular Record Date and
before the opening of business (at such office or agency) on the next succeeding
Interest Payment Date, such Bearer Security shall be surrendered without the
coupon relating to such Interest Payment Date and interest will not be payable
on such Interest Payment Date in respect of the Registered Security issued in
exchange for such Bearer Security, but will be payable only to the Holder of
such coupon when due in accordance with the provisions of this Indenture.

     Except as otherwise specified with respect to a series of Securities in
accordance with the provisions of Section 301, any interest on any Registered
Security of any series that is payable, but is not punctually paid or duly
provided for, on any Interest Payment Date (herein called "Defaulted Interest")
shall forthwith cease to be payable to the registered Holder thereof on the
relevant Regular Record Date by virtue of having been such Holder, and such
Defaulted Interest may be paid by the Company, at its election in each case, as
provided in clause (1) or (2) below:

          (1) The Company may elect to make payment of any Defaulted Interest to
     the Persons in whose names the Registered Securities of such series (or
     their respective Predecessor Securities) are registered at the close of
     business on a Special Record Date for the payment of such Defaulted
     Interest, which shall be fixed in the following manner. The Company shall
     notify the Trustee in writing of the amount of Defaulted Interest proposed
     to be paid on each Registered Security of such series and the date of the
     proposed payment (which shall not be less than 20 days after such notice is
     received by the Trustee), and at the same time the Company shall deposit
     with the Trustee an amount of money in the currency or currencies, currency
     unit or units or composite currency or currencies in which the Securities
     of such series are payable (except as otherwise specified pursuant to
     Section 301 for the Securities of such series) equal to the aggregate
     amount proposed to be paid in respect of such Defaulted Interest or shall
     make arrangements satisfactory to the Trustee for such deposit on or prior
     to the date of the proposed payment, such money when deposited to be held
     in trust for the benefit of the Persons entitled to such Defaulted Interest
     as in this clause provided. 


                                       34


<PAGE>   41


     Thereupon the Trustee shall fix a Special Record Date for the payment of
     such Defaulted Interest which shall be not more than 15 days and not less
     than 10 days prior to the date of the proposed payment and not less than 10
     days after the receipt by the Trustee of the notice of the proposed
     payment. The Trustee shall promptly notify the Company of such Special
     Record Date and, in the name and at the expense of the Company, shall cause
     notice of the proposed payment of such Defaulted Interest and the Special
     Record Date therefor to be mailed, first-class postage prepaid, to each
     Holder of Registered Securities of such series at his address as it appears
     in the Security Register not less than 10 days prior to such Special Record
     Date. The Trustee may, in its discretion, in the name and at the expense of
     the Company, cause a similar notice to be published at least once in an
     Authorized Newspaper in each Place of Payment, but such publications shall
     not be a condition precedent to the establishment of such Special Record
     Date. Notice of the proposed payment of such Defaulted Interest and the
     Special Record Date therefor having been mailed as aforesaid, such
     Defaulted Interest shall be paid to the Persons in whose names the
     Registered Securities of such series (or their respective Predecessor
     Securities) are registered at the close of business on such Special Record
     Date and shall no longer be payable pursuant to the following clause (2).
     In case a Bearer Security of any series is surrendered at the office or
     agency in a Place of Payment for such series in exchange for a Registered
     Security of such series after the close of business at such office or
     agency on any Special Record Date and before the opening of business at
     such office or agency on the related proposed date for payment of Defaulted
     Interest, such Bearer Security shall be surrendered without the coupon
     relating to such proposed date of payment and Defaulted Interest will not
     be payable on such proposed date of payment in respect of the Registered
     Security issued in exchange for such Bearer Security, but will be payable
     only to the Holder of such coupon when due in accordance with the
     provisions of this Indenture.

          (2) The Company may make payment of any Defaulted Interest on the
     Registered Securities of any series in any other lawful manner not
     inconsistent with the requirements of any securities exchange on which such
     Securities may be listed, and upon such notice as may be required by such
     exchange, if, after notice given by the Company to the Trustee of the
     proposed payment pursuant to this clause, such manner of payment shall be
     deemed practicable by the Trustee.

     Subject to the foregoing provisions of this Section and Section 305, each
Security delivered under this Indenture upon registration of transfer of or in
exchange for or in lieu of any other Security shall carry the rights to interest
accrued and unpaid, and to accrue, which were carried by such other Security.

     SECTION 308. PERSONS DEEMED OWNERS. Prior to due presentment of a
Registered Security for registration of transfer, the Company, the Trustee and
any agent of the Company or the Trustee may treat the Person in whose name such
Registered Security is registered as the owner of such Security for the purpose
of receiving payment of principal of (and premium or 


                                       35


<PAGE>   42


Make-Whole Amount, if any), and (subject to Sections 305 and 307) interest on,
such Registered Security and for all other purposes whatsoever, whether or not
such Registered Security be overdue, and neither the Company, the Trustee nor
any agent of the Company or the Trustee shall be affected by notice to the
contrary. All such payments so made to any such Person, or upon such Person's
order, shall be valid, and, to the extent of the sum or sums so paid, effectual
to satisfy and discharge the liability for money payable upon any such Security.

     Title to any Bearer Security and any coupons appertaining thereto shall
pass by delivery. The Company, the Trustee and any agent of the Company or the
Trustee may treat the Holder of any Bearer Security and the Holder of any coupon
as the absolute owner of such Security or coupon for the purpose of receiving
payment thereof or on account thereof and for all other purposes whatsoever,
whether or not such Security or coupon be overdue, and neither the Company, the
Trustee nor any agent of the Company or the Trustee shall be affected by notice
to the contrary.

     No Holder of any beneficial interest in any Global Security held on its
behalf by a depository shall have any rights under this Indenture with respect
to such Global Security and such depository shall be treated by the Company, the
Trustee, and any agent of the Company or the Trustee as the owner of such Global
Security for all purposes whatsoever. None of the Company, the Trustee, any
Paying Agent or the Security Registrar will have any responsibility or liability
for any aspect of the records relating to or payments made on account of
beneficial ownership interests of a Global Security or for maintaining,
supervising or reviewing any records relating to such beneficial ownership
interests.

     Notwithstanding the foregoing, with respect to any Global Security, nothing
herein shall prevent the Company, the Trustee, or any agent of the Company or
the Trustee, from giving effect to any written certification, proxy or other
authorization furnished by any depository, as a Holder, with respect to such
Global Security or impair, as between such depository and owners of beneficial
interests in such Global Security, the operation of customary practices
governing the exercise of the rights of such depository (or its nominee) as
Holder of such Global Security.

     SECTION 309. CANCELLATION. All Securities and coupons surrendered for
payment, redemption, repayment at the option of the Holder, registration of
transfer or exchange or for credit against any sinking fund payment shall, if
surrendered to any Person other than the Trustee, be delivered to the Trustee,
and any such Securities and coupons and Securities and coupons surrendered
directly to the Trustee for any such purpose shall be promptly cancelled by it.
The Company may at any time deliver to the Trustee for cancellation any
Securities previously authenticated and delivered hereunder which the Company
may have acquired in any manner whatsoever, and may deliver to the Trustee (or
to any other Person for delivery to the Trustee) for cancellation any Securities
previously authenticated hereunder which the Company has not issued and sold,
and all Securities so delivered shall be promptly cancelled by the Trustee. If
the Company shall so acquire any of the Securities, however, such 


                                       36


<PAGE>   43


acquisition shall not operate as a redemption or satisfaction of the
indebtedness represented by such Securities unless and until the same are
surrendered to the Trustee for cancellation. No Securities shall be
authenticated in lieu of or in exchange for any Securities cancelled as provided
in this Section, except as expressly permitted by this Indenture. Cancelled
Securities and coupons held by the Trustee shall be destroyed by the Trustee,
unless the Trustee is otherwise directed by a Company Order.

     SECTION 310. COMPUTATION OF INTEREST. Except as otherwise specified as
contemplated by Section 301 with respect to Securities of any series, interest
on the Securities of each series shall be computed on the basis of a 360-day
year consisting of twelve 30-day months.

                    ARTICLE FOUR - SATISFACTION AND DISCHARGE

     SECTION 401. SATISFACTION AND DISCHARGE OF INDENTURE. This Indenture shall
upon Company Request cease to be of further effect with respect to any series of
Securities specified in such Company Request (except as to any surviving rights
of registration of transfer or exchange of Securities of such series herein
expressly provided for), and the Trustee, upon receipt of a Company Order, and
at the expense of the Company, shall execute instruments in form and substance
satisfactory to the Trustee and the Company acknowledging satisfaction and
discharge of this Indenture as to such series when

               (1) either

               (A) all Securities of such series theretofore authenticated and
          delivered and all coupons, if any, appertaining thereto (other than
          (i) coupons appertaining to Bearer Securities surrendered for exchange
          for Registered Securities and maturing after such exchange, whose
          surrender is not required or has been waived as provided in Section
          305, (ii) Securities and coupons of such series which have been
          destroyed, lost or stolen and which have been replaced or paid as
          provided in Section 306, (iii) coupons appertaining to Securities
          called for redemption and maturing after the relevant Redemption Date,
          whose surrender has been waived as provided in Section 1106, and (iv)
          Securities and coupons of such series for whose payment money has
          theretofore been deposited in trust or segregated and held in trust by
          the Company and thereafter repaid to the Company or discharged from
          such trust, as provided in Section 1003) have been delivered to the
          Trustee for cancellation; or

               (B) all Securities of such series and, in the case of (i) or (ii)
          below, any coupons appertaining thereto not theretofore delivered to
          the Trustee for cancellation


                                       37


<PAGE>   44


               (i) have become due and payable, or

               (ii) will become due and payable at their Stated Maturity within
          one year, or

               (iii) if redeemable at the option of the Company, are to be
          called for redemption within one year under arrangements satisfactory
          to the Trustee for the giving of notice of redemption by the Trustee
          in the name, and at the expense, of the Company,

     and the Company, in the case of (i), (ii) or (iii) above, has irrevocably
     deposited or caused to be deposited with the Trustee as trust funds in
     trust for the purpose an amount in the currency or currencies, currency
     unit or units or composite currency or currencies in which the Securities
     of such series are payable, sufficient to pay and discharge the entire
     indebtedness on such Securities and such coupons not theretofore delivered
     to the Trustee for cancellation, for principal (and premium or Make-Whole
     Amount, if any) and interest to the date of such deposit (in the case of
     Securities which have become due and payable) or to the Stated Maturity or
     Redemption Date, as the case may be;

          (2) the Company has paid or caused to be paid all other sums payable
hereunder by the Company; and

          (3) the Company has delivered to the Trustee an Officers' Certificate
and an Opinion of Counsel, each stating that all conditions precedent herein
provided for relating to the satisfaction and discharge of this Indenture as to
such series have been complied with.

Notwithstanding the satisfaction and discharge of this Indenture, the
obligations of the Company to the Trustee and any predecessor Trustee under
Section 606, the obligations of the Company to any Authenticating Agent under
Section 611 and, if money shall have been deposited with and held by the Trustee
pursuant to subclause (B) of clause (1) of this Section, the obligations of the
Trustee under Section 402 and the last paragraph of Section 1003 shall survive.

     SECTION 402. APPLICATION OF TRUST FUNDS. Subject to the provisions of the
last paragraph of Section 1003, all money deposited with the Trustee pursuant to
Section 401 shall be held in trust and applied by it, in accordance with the
provisions of the Securities, the coupons and this Indenture, to the payment,
either directly or through any Paying Agent (including the Company acting as its
own Paying Agent) as the Trustee may determine, to the Persons entitled thereto,
of the principal (and premium or Make-Whole Amount, if any), and any interest
for whose payment such money has been deposited with or received by the 


                                       38


<PAGE>   45


Trustee, but such money need not be segregated from other funds except to the
extent required by law.

                             ARTICLE FIVE - REMEDIES

     SECTION 501. EVENTS OF DEFAULT. "Event of Default," wherever used herein
with respect to any particular series of Securities, means any one of the
following events (whatever the reason for such Event of Default and whether or
not it shall be voluntary or involuntary or be effected by operation of law or
pursuant to any judgment, decree or order of any court or any order, rule or
regulation of any administrative or governmental body):

          (1) default in the payment of any interest on any Security of that
     series or of any coupon appertaining thereto, when such interest or coupon
     becomes due and payable, and continuance of such default for a period of 30
     days; or

          (2) default in the payment of the principal of (or premium or
     Make-Whole Amount, if any, on) any Security of that series when it becomes
     due and payable at its Maturity; or

          (3) default in the deposit of any sinking fund payment, when and as
     due by the terms of any Security of that series; or

          (4) default in the performance, or breach, of any covenant or warranty
     of the Company in this Indenture with respect to any Security of that
     series (other than a covenant or warranty a default in whose performance or
     whose breach is elsewhere in this Section specifically dealt with), and
     continuance of such default or breach for a period of 60 days after there
     has been given, by registered or certified mail, to the Company by the
     Trustee or to the Company and the Trustee by the Holders of at least 25% in
     principal amount of the Outstanding Securities of that series a written
     notice specifying such default or breach and requiring it to be remedied
     and stating that such notice is a "Notice of Default" hereunder; or

          (5) default under any bond, debenture, note, mortgage, indenture or
     instrument under which there may be issued or by which there may be secured
     or evidenced any indebtedness for money borrowed by the Company (or by any
     Subsidiary, the repayment of which the Company has guaranteed or for which
     the Company is directly responsible or liable as obligor or guarantor),
     having an aggregate principal amount outstanding of at least $25,000,000,
     whether such indebtedness now exists or shall hereafter be created, which
     default shall have resulted in such indebtedness becoming or being declared
     due and payable prior to the date on which it would otherwise have become
     due and payable, without such indebtedness having been discharged, or such
     acceleration having been rescinded or annulled, within a period of 


                                       39


<PAGE>   46


     10 days after there shall have been given, by registered or certified mail,
     to the Company by the Trustee or to the Company and the Trustee by the
     Holders of at least 10% in principal amount of the Outstanding Securities
     of that series a written notice specifying such default and requiring the
     Company to cause such indebtedness to be discharged or cause such
     acceleration to be rescinded or annulled and stating that such notice is a
     "Notice of Default" hereunder; or

          (6) the entry by a court of competent jurisdiction of one or more
     judgments, orders or decrees against the Company or any of its Subsidiaries
     in an aggregate amount (excluding amounts covered by insurance) in excess
     of $10,000,000 and such judgments, orders or decrees remain undischarged,
     unstayed and unsatisfied in an aggregate amount (excluding amounts covered
     by insurance) in excess of $10,000,000 for a period of 30 consecutive days;
     or

          (7) the Company or any Significant Subsidiary pursuant to or within
     the meaning of any Bankruptcy Law:

               (A) commences a voluntary case,

               (B) consents to the entry of an order for relief against it in an
          involuntary case,

               (C) consents to the appointment of a Custodian of it or for all
          or substantially all of its property, or

               (D) makes a general assignment for the benefit of its creditors;

          or

     (8) a court of competent jurisdiction enters an order or decree under any
Bankruptcy Law that:

               (A) is for relief against the Company or any Significant
          Subsidiary in an involuntary case,

               (B) appoints a Custodian of the Company or any Significant
          Subsidiary or for all or substantially all of either of its property,
          or

               (C) orders the liquidation of the Company or any Significant
          Subsidiary, and the order or decree remains unstayed and in effect for
          90 days; or

     (9) any other Event of Default provided with respect to Securities of that
series.


                                       40


<PAGE>   47


As used in this Section 501, the term "Bankruptcy Law" means title 11, U.S. Code
or any similar Federal or state law for the relief of debtors and the term
"Custodian" means any receiver, trustee, assignee, liquidator or other similar
official under any Bankruptcy Law.

     SECTION 502. ACCELERATION OF MATURITY; RESCISSION AND ANNULMENT. If an
Event of Default with respect to Securities of any series at the time
Outstanding occurs and is continuing, then and in every such case the Trustee or
the Holders of not less than 25% in principal amount of the Outstanding
Securities of that series may declare the principal amount (or, if Securities of
that Series are Original Issue Discount Securities or Indexed Securities, such
portion of the principal as may be specified in the terms thereof) of all the
Securities of that series to be due and payable immediately, by a notice in
writing to the Company (and to the Trustee if given by the Holders), and upon
any such declaration such principal or specified portion thereof shall become
immediately due and payable.

     At any time after such a declaration of acceleration with respect to
Securities of any series has been made and before a judgment or decree for
payment of the money due has been obtained by the Trustee as hereinafter in this
Article provided, the Holders of a majority in principal amount of the
Outstanding Securities of that series, by written notice to the Company and the
Trustee, may rescind and annul such declaration of acceleration and its
consequences if:

               (1) the Company has paid or deposited with the Trustee a sum
          sufficient to pay in the currency, currency unit or composite currency
          in which the Securities of such series are payable (except as
          otherwise specified pursuant to Section 301 for the Securities of such
          series):

                    (A) all overdue installments of interest on all Outstanding
               Securities of that series and any related coupons,

                    (B) the principal of (and premium or Make-Whole Amount, if
               any, on) any Outstanding Securities of that series which have
               become due otherwise than by such declaration of acceleration and
               interest thereon at the rate or rates borne by or provided for in
               such Securities,

                    (C) to the extent that payment of such interest is lawful,
               interest upon overdue installments of interest at the rate or
               rates borne by or provided for in such Securities, and

                    (D) all sums paid or advanced by the Trustee hereunder and
               the reasonable compensation, expenses, disbursements and advances
               of the Trustee, its agents and counsel; and


                                       41


<PAGE>   48


               (2) all Events of Default with respect to Securities of that
          series, other than the nonpayment of the principal of (or premium or
          Make-Whole Amount, if any) or interest on Securities of that series
          which have become due solely by such declaration of acceleration, have
          been cured or waived as provided in Section 513.

No such rescission shall affect any subsequent default or impair any right
consequent thereon.

     SECTION 503. COLLECTION OF INDEBTEDNESS AND SUITS FOR ENFORCEMENT BY
TRUSTEE. The Company covenants that if:

               (1) default is made in the payment of any installment of interest
          on any Security of any series and any related coupon when such
          interest becomes due and payable and such default continues for a
          period of 30 days, or

               (2) default is made in the payment of the principal of (or
          premium or Make-Whole Amount, if any, on) any Security of any series
          at its Maturity,

then the Company will, upon demand of the Trustee, pay to the Trustee, for the
benefit of the Holders of such Securities of such series and coupons, the whole
amount then due and payable on such Securities and coupons for principal (and
premium or Make-Whole Amount, if any) and interest, with interest upon any
overdue principal (and premium or Make-Whole Amount, if any) and, to the extent
that payment of such interest shall be legally enforceable, upon any overdue
installments of interest at the rate or rates borne by or provided for in such
Securities, and, in addition thereto, such further amount as shall be sufficient
to cover the costs and expenses of collection, including the reasonable
compensation, expenses, disbursements and advances of the Trustee, its agents
and counsel.

     If the Company fails to pay such amounts forthwith upon such demand, the
Trustee, in its own name and as trustee of an express trust, may institute a
judicial proceeding for the collection of the sums so due and unpaid, and may
prosecute such proceeding to judgment or final decree, and may enforce the same
against the Company or any other obligor upon such Securities of such series and
collect the moneys adjudged or decreed to be payable in the manner provided by
law out of the property of the Company or any other obligor upon such Securities
of such series, wherever situated.

     If an Event of Default with respect to Securities of any series occurs and
is continuing, the Trustee may in its discretion proceed to protect and enforce
its rights and the rights of the Holders of Securities of such series and any
related coupons by such appropriate judicial proceedings as the Trustee shall
deem most effectual to protect and enforce any such rights, whether for the
specific enforcement of any covenant or agreement in this Indenture or in aid of
the exercise of any power granted herein, or to enforce any other proper remedy.


                                       42


<PAGE>   49


     SECTION 504. TRUSTEE MAY FILE PROOFS OF CLAIM. In case of the pendency of
any receivership, insolvency, liquidation, bankruptcy, reorganization,
arrangement, adjustment, composition or other judicial proceeding relative to
the Company or any other obligor upon the Securities or the property of the
Company or of such other obligor or their creditors, the Trustee (irrespective
of whether the principal of the Securities of any series shall then be due and
payable as therein expressed or by declaration or otherwise and irrespective of
whether the Trustee shall have made any demand on the Company for the payment of
overdue principal, premium or Make-Whole Amount, if any, or interest) shall be
entitled and empowered, by intervention in such proceeding or otherwise:

          (i) to file and prove a claim for the whole amount, or such lesser
     amount as may be provided for in the Securities of such series, of
     principal (and premium or Make-Whole Amount, if any) and interest owing and
     unpaid in respect of the Securities and to file such other papers or
     documents (and take such other action including sitting on a committee of
     creditors) as may be necessary or advisable in order to have the claims of
     the Trustee (including any claim for the reasonable compensation, expenses,
     disbursements and advances of the Trustee, its agents and counsel) and of
     the Holders allowed in such judicial proceeding, and

          (ii) to collect and receive any moneys or other property payable or
     deliverable on any such claims and to distribute the same;

and any custodian, receiver, assignee, trustee, liquidator, sequestrator (or
other similar official) in any such judicial proceeding is hereby authorized by
each Holder of Securities of such series and coupons to make such payments to
the Trustee, and in the event that the Trustee shall consent to the making of
such payments directly to the Holders, to pay to the Trustee any amount due to
it for the reasonable compensation, expenses, disbursements and advances of the
Trustee and any predecessor Trustee, their agents and counsel, and any other
amounts due the Trustee or any predecessor Trustee under Section 606.

     Nothing herein contained shall be deemed to authorize the Trustee to
authorize or consent to or accept or adopt on behalf of any Holder of a Security
or coupon any plan of reorganization, arrangement, adjustment or composition
affecting the Securities or coupons or the rights of any Holder thereof, or to
authorize the Trustee to vote in respect of the claim of any Holder of a
Security or coupon in any such proceeding.

     In any proceedings brought by the Trustee (and also any proceedings
involving the interpretation of any provision of this Indenture to which the
Trustee shall be a party) the Trustee shall be held to represent all the Holders
of the Securities, and it shall not be necessary to make any Holders of the
Securities parties to any such proceedings.

     SECTION 505. TRUSTEE MAY ENFORCE CLAIMS WITHOUT POSSESSION OF SECURITIES OR
COUPONS. All rights of action and claims under this Indenture or any of the
Securities or 


                                       43


<PAGE>   50


coupons may be prosecuted and enforced by the Trustee without the possession of
any of the Securities or coupons or the production thereof in any proceeding
relating thereto, and any such proceeding instituted by the Trustee shall be
brought in its own name as trustee of an express trust, and any recovery of
judgment shall, after provision for the payment of the reasonable compensation,
expenses, disbursements and advances of the Trustee, its agents and counsel, be
for the ratable benefit of the Holders of the Securities and coupons in respect
of which such judgment has been recovered.

     SECTION 506. APPLICATION OF MONEY COLLECTED. Any money collected by the
Trustee pursuant to this Article shall be applied in the following order, at the
date or dates fixed by the Trustee and, in case of the distribution of such
money on account of principal (or premium or Make-Whole Amount, if any) or
interest, upon presentation of the Securities or coupons, or both, as the case
may be, and the notation thereon of the payment if only partially paid and upon
surrender thereof if fully paid:

          FIRST: To the payment of all amounts due the Trustee and any
     predecessor Trustee under Section 606;

          SECOND: To the payment of the amounts then due and unpaid upon the
     Securities and coupons for principal (and premium or Make-Whole Amount, if
     any) and interest, in respect of which or for the benefit of which such
     money has been collected, ratably, without preference or priority of any
     kind, according to the aggregate amounts due and payable on such Securities
     and coupons for principal (and premium or Make-Whole Amount, if any) and
     interest, respectively; and

          THIRD: To the payment of the remainder, if any, to the Company.

     SECTION 507. LIMITATION ON SUITS. No Holder of any Security of any series
or any related coupon shall have any right to institute any proceeding, judicial
or otherwise, with respect to this Indenture, or for the appointment of a
receiver or trustee, or for any other remedy hereunder, unless:

          (1) such Holder has previously given written notice to the Trustee of
     a continuing Event of Default with respect to the Securities of that
     series;

          (2) the Holders of not less than 25% in principal amount of the
     Outstanding Securities of that series shall have made written request to
     the Trustee to institute proceedings in respect of such Event of Default in
     its own name as Trustee hereunder;

          (3) such Holder or Holders have offered to the Trustee indemnity
     reasonably satisfactory to the Trustee against the costs, expenses
     (including reasonable attorneys' fees) and liabilities to be incurred in
     compliance with such request;


                                       44


<PAGE>   51


          (4) the Trustee for 60 days after its receipt of such notice, request
     and offer of indemnity has failed to institute any such proceeding; and

          (5) no direction inconsistent with such written request has been given
     to the Trustee during such 60-day period by the Holders of a majority in
     principal amount of the Outstanding Securities of that series;

it being understood and intended that no one or more of such Holders shall have
any right in any manner whatever by virtue of, or by availing of, any provision
of this Indenture to affect, disturb or prejudice the rights of any other of
such Holders, or to obtain or to seek to obtain priority or preference over any
other of such Holders or to enforce any right under this Indenture, except in
the manner herein provided and for the equal and ratable benefit of all such
Holders.

     SECTION 508. UNCONDITIONAL RIGHT OF HOLDERS TO RECEIVE PRINCIPAL, PREMIUM
OR MAKE-WHOLE AMOUNT, IF ANY, AND INTEREST. Notwithstanding any other provision
in this Indenture, the Holder of any Security or coupon shall have the right
which is absolute and unconditional to receive payment of the principal of (and
premium or Make-Whole Amount, if any) and (subject to Sections 305 and 307)
interest on such Security or payment of such coupon on the respective due dates
expressed in such Security or coupon (or, in the case of redemption, on the
Redemption Date) and to institute suit for the enforcement of any such payment,
and such rights shall not be impaired without the consent of such Holder.

     SECTION 509. RESTORATION OF RIGHTS AND REMEDIES. If the Trustee or any
Holder of a Security or coupon has instituted any proceeding to enforce any
right or remedy under this Indenture and such proceeding has been discontinued
or abandoned for any reason, or has been determined adversely to the Trustee or
to such Holder, then and in every such case, the Company, the Trustee and the
Holders of Securities and coupons shall, subject to any determination in such
proceeding, be restored severally and respectively to their former positions
hereunder and thereafter all rights and remedies of the Trustee and the Holders
shall continue as though no such proceeding had been instituted.

     SECTION 510. RIGHTS AND REMEDIES CUMULATIVE. Except as otherwise provided
with respect to the replacement or payment of mutilated, destroyed, lost or
stolen Securities or coupons in the last paragraph of Section 306, no right or
remedy herein conferred upon or reserved to the Trustee or to the Holders of
Securities or coupons is intended to be exclusive of any other right or remedy,
and every right and remedy shall, to the extent permitted by law, be cumulative
and in addition to every other right and remedy given hereunder or now or
hereafter existing at law or in equity or otherwise. The assertion or employment
of any right or remedy hereunder, or otherwise, shall not prevent the concurrent
assertion or employment of any other appropriate right or remedy.


                                       45


<PAGE>   52


     SECTION 511. DELAY OR OMISSION NOT WAIVER. No delay or omission of the
Trustee or of any Holder of any Security or coupon to exercise any right or
remedy accruing upon any Event of Default shall impair any such right or remedy
or constitute a waiver of any such Event of Default or an acquiescence therein.
Every right and remedy given by this Article or by law to the Trustee or to the
Holders may be exercised from time to time, and as often as may be deemed
expedient, by the Trustee or by the Holders of Securities or coupons, as the
case may be.

     SECTION 512. CONTROL BY HOLDERS OF SECURITIES. The Holders of not less than
a majority in principal amount of the Outstanding Securities of any series shall
have the right to direct the time, method and place of conducting any proceeding
for any remedy available to the Trustee or exercising any trust or power
conferred on the Trustee with respect to the Securities of such series, PROVIDED
that

          (1) such direction shall not be in conflict with any rule of law or
     with this Indenture,

          (2) the Trustee may take any other action deemed proper by the Trustee
     which is not inconsistent with such direction, and

          (3) the Trustee need not take any action which might involve it in
     personal liability or be unduly prejudicial to the Holders of Securities of
     such series not joining therein.

     Nothing in this Indenture shall impair the right of the Trustee in its
discretion to take any action deemed proper by the Trustee and which is not
inconsistent with such direction by Holders.

     SECTION 513. WAIVER OF DEFAULTS. The Holders of not less than a majority
in principal amount of the Outstanding Securities of any series may on behalf of
the Holders of all the Securities of such series and any related coupons waive
any default hereunder with respect to such series and its consequences, except a
default

          (1) in the payment of the principal of (or premium or Make-Whole
     Amount, if any) or interest on any Security of such series or any related
     coupons, or

          (2) in respect of a covenant or provision hereof which under Article
     Nine cannot be modified or amended without the consent of the Holder of
     each Outstanding Security of such series affected.

     Upon any such waiver, such default shall cease to exist, and any Event of
Default arising therefrom shall be deemed to have been cured, for every purpose
of this Indenture; but 


                                       46


<PAGE>   53


no such waiver shall extend to any subsequent or other default or Event of
Default or impair any right consequent thereon.

     SECTION 514. WAIVER OF USURY, STAY OR EXTENSION LAWS. The Company
covenants (to the extent that it may lawfully do so) that it will not at any
time insist upon, or plead, or in any manner whatsoever claim or take the
benefit or advantage of, any usury, stay or extension law wherever enacted, now
or at any time hereafter in force, which may affect the covenants or the
performance of this Indenture; and the Company (to the extent that it may
lawfully do so) hereby expressly waives all benefit or advantage of any such
law, and covenants that it will not hinder, delay or impede the execution of any
power herein granted to the Trustee, but will suffer and permit the execution of
every such power as though no such law had been enacted.

     SECTION 515. UNDERTAKING FOR COSTS. All parties to this Indenture agree,
and each Holder of any Security by his acceptance thereof shall be deemed to
have agreed, that any court may in its discretion require, in any suit for the
enforcement of any right or remedy under this Indenture, or in any suit against
the Trustee for any action taken or omitted by it as Trustee, the filing by any
party litigant in such suit of an undertaking to pay the costs of such suit, and
that such court may in its discretion assess reasonable costs, including
reasonable attorneys' fees, against any party litigant in such suit having due
regard to the merits and good faith of the claims or defenses made by such party
litigant; but the provisions of this Section shall not apply to any suit
instituted by the Trustee, to any suit instituted by any Holder, or group of
Holders, holding in the aggregate more than 10% in principal amount of the
Outstanding Securities of any series, or to any suit instituted by any Holder
for the enforcement of the payment of the principal of (or premium or Make-Whole
Amount, if any) or interest on any Security on or after the respective Stated
Maturities expressed in such Security (or, in the case of redemption, on or
after the Redemption Date).

                            ARTICLE SIX - THE TRUSTEE

     SECTION 601. NOTICE OF DEFAULTS. Within 90 days after the occurrence of
any default hereunder with respect to the Securities of any series, the Trustee
shall transmit in the manner and to the extent provided in TIA Section 313(c),
notice of such default hereunder known to a Responsible Officer of the Trustee,
unless such default shall have been cured or waived; PROVIDED, HOWEVER, that,
except in the case of a default in the payment of the principal of (or premium
or Make-Whole Amount, if any) or interest on any Security of such series, or in
the payment of any sinking fund installment with respect to the Securities of
such series, the Trustee shall be protected in withholding such notice if and so
long as Responsible Officers of the Trustee in good faith determine that the
withholding of such notice is in the interests of the Holders of the Securities
and coupons of such series; and PROVIDED FURTHER that in the case of any default
or breach of the character specified in Section 501(4) with respect to the
Securities and coupons of such series, no such notice to Holders shall be given
until at least 60 days after the occurrence thereof. For the purpose of this
Section, the term "default" means any event 


                                       47


<PAGE>   54


which is, or after notice or lapse of time or both would become, an Event of
Default with respect to the Securities of such series.

     SECTION 602. CERTAIN RIGHTS OF TRUSTEE. Subject to the provisions of TIA
Section 315(a) through 315(d):

          (1) the Trustee may rely and shall be protected in acting or
     refraining from acting upon any resolution, certificate, statement,
     instrument, opinion, report, notice, request, direction, consent, order,
     bond, debenture, note, coupon or other paper or document believed by it to
     be genuine and to have been signed or presented by the proper party or
     parties;

          (2) any request or direction of the Company mentioned herein shall be
     sufficiently evidenced by a Company Request or Company Order (other than
     delivery of any Security, together with any coupons appertaining thereto,
     to the Trustee for authentication and delivery pursuant to Section 303
     which shall be sufficiently evidenced as provided therein) and any
     resolution of the Board of Directors may be sufficiently evidenced by a
     Board Resolution;

          (3) whenever in the administration of this Indenture the Trustee shall
     deem it desirable that a matter be proved or established prior to taking,
     suffering or omitting any action hereunder, the Trustee (unless other
     evidence be herein specifically prescribed) may, in the absence of bad
     faith on its part, rely upon an Officers' Certificate;

          (4) the Trustee may consult with counsel and the written advice of
     such counsel or any Opinion of Counsel shall be full and complete
     authorization and protection in respect of any action taken, suffered or
     omitted by it hereunder in good faith and in reliance thereon;

          (5) the Trustee shall be under no obligation to exercise any of the
     rights or powers vested in it by this Indenture at the request or direction
     of any of the Holders of Securities of any series or any related coupons
     pursuant to this Indenture, unless such Holders shall have offered to the
     Trustee security or indemnity reasonably satisfactory to the Trustee
     against the costs, expenses (including reasonable attorneys' fees) and
     liabilities which might be incurred by it in compliance with such request
     or direction;

          (6) the Trustee shall not be bound to make any investigation into the
     facts or matters stated in any resolution, certificate, statement,
     instrument, opinion, report, notice, request, direction, consent, order,
     bond, debenture, note, coupon or other paper or document, unless requested
     in writing so to do by the Holders of not less than a majority in aggregate
     principal amount of the Outstanding Securities of any 


                                       48


<PAGE>   55


     series; PROVIDED that, if the payment within a reasonable time to the
     Trustee of the costs, expenses or liabilities likely to be incurred by it
     in the making of such investigation is, in the opinion of the Trustee, not
     reasonably assured to the Trustee by the security afforded to it by the
     terms of this Indenture, the Trustee may require reasonable indemnity
     against such expenses or liabilities as a condition to proceeding; the
     reasonable expenses of every such examination shall be paid by the Holders
     or, if paid by the Trustee, shall be repaid by the Holders upon demand. The
     Trustee, in its discretion, may make such further inquiry or investigation
     into such facts or matters as it may see fit, and, if the Trustee shall
     determine to make such further inquiry or investigation, it shall be
     entitled to examine the books, records and premises of the Company,
     relevant to the facts or matters that are the subject of its inquiry,
     personally or by agent or attorney;

          (7) the Trustee may execute any of the trusts or powers hereunder or
     perform any duties hereunder either directly or by or through agents or
     attorneys and the Trustee shall not be responsible for any misconduct or
     negligence on the part of any agent or attorney appointed with due care by
     it hereunder; and

          (8) the Trustee shall not be liable for any action taken, suffered or
     omitted by it in good faith and reasonably believed by it to be authorized
     or within the discretion or rights or powers conferred upon it by this
     Indenture.

     The Trustee shall not be required to expend or risk its own funds or
otherwise incur any financial liability in the performance of any of its duties
hereunder, or in the exercise of any of its rights or powers, if it shall have
reasonable grounds for believing that repayment of such funds or adequate
indemnity against such risk or liability is not reasonably assured to it.

     Except during the continuance of an Event of Default, the Trustee
undertakes to perform only such duties as are specifically set forth in this
Indenture, and no implied covenants or obligations shall be read into this
Indenture against the Trustee.

     SECTION 603. NOT RESPONSIBLE FOR RECITALS OR ISSUANCE OF SECURITIES. The
recitals contained herein and in the Securities, except the Trustee's
certificate of authentication, and in any coupons shall be taken as the
statements of the Company, and neither the Trustee nor any Authenticating Agent
assumes any responsibility for their correctness. The Trustee makes no
representations as to the validity or sufficiency of this Indenture or of the
Securities or coupons, except that the Trustee represents that it is duly
authorized to execute and deliver this Indenture, authenticate the Securities
and perform its obligations hereunder. Neither the Trustee nor any
Authenticating Agent shall be accountable for the use or application by the
Company of Securities or the proceeds thereof.

     SECTION 604. MAY HOLD SECURITIES. The Trustee, any Paying Agent, Security
Registrar, Authenticating Agent or any other agent of the Company, in its
individual or any 


                                       49


<PAGE>   56


other capacity, may become the owner or pledgee of Securities and coupons and,
subject to TIA Sections 310(b) and 311, may otherwise deal with the Company with
the same rights it would have if it were not Trustee, Paying Agent, Security
Registrar, Authenticating Agent or such other agent.

     SECTION 605. MONEY HELD IN TRUST. Money held by the Trustee in trust
hereunder need not be segregated from other funds except to the extent required
by law. The Trustee shall be under no liability for interest on any money
received by it hereunder except as otherwise agreed with the Company.

     SECTION 606. COMPENSATION AND REIMBURSEMENT. The Company agrees:

          (1) to pay to the Trustee from time to time reasonable compensation
     for all services rendered by it hereunder (which compensation shall not be
     limited by any provision of law in regard to the compensation of a trustee
     of an express trust);

          (2) except as otherwise expressly provided herein, to reimburse each
     of the Trustee and any predecessor Trustee upon its request for all
     reasonable expenses, disbursements and advances incurred or made by the
     Trustee in accordance with any provision of this Indenture (including the
     reasonable compensation and the reasonable expenses and disbursements of
     its agents and counsel), except any such expense, disbursement or advance
     as may be attributable to its negligence or bad faith; and

          (3) to indemnify each of the Trustee and any predecessor Trustee and
     their respective directors, officers and employees, for, and to hold them
     harmless against, any loss, liability or expense incurred without
     negligence or bad faith on its part, arising out of or in connection with
     the acceptance or administration of the trust or trusts hereunder,
     including the costs and expenses of defending itself against any claim or
     liability in connection with the exercise or performance of any of its
     powers or duties hereunder.

     When the Trustee incurs expenses or renders services in connection with an
Event of Default specified in Section 501(7) or Section 501(8), the expenses
(including the reasonable charges and expenses of its counsel) and the
compensation for the services are intended to constitute expenses of
administration under any applicable Federal or state bankruptcy, insolvency or
other similar law.

     As security for the performance of the obligations of the Company under
this Section, the Trustee shall have a lien prior to the Securities upon all
property and funds held or collected by the Trustee as such, except funds held
in trust for the payment of principal of (or premium or Make-Whole Amount, if
any) or interest on particular Securities or any coupons.

           The provisions of this Section shall survive the termination of this
Indenture.


                                       50


<PAGE>   57


     SECTION 607. CORPORATE TRUSTEE REQUIRED; ELIGIBILITY; CONFLICTING
INTERESTS. There shall at all times be a Trustee hereunder which shall be
eligible to act as Trustee under TIA Section 310(a)(1) and shall have a combined
capital and surplus of at least $50,000,000. If such corporation publishes
reports of condition at least annually, pursuant to law or the requirements of
Federal, state, territorial or District of Columbia supervising or examining
authority, then for the purposes of this Section, the combined capital and
surplus of such corporation shall be deemed to be its combined capital and
surplus as set forth in its most recent report of condition so published. If at
any time the Trustee shall cease to be eligible in accordance with the
provisions of this Section, it shall resign immediately in the manner and with
the effect hereinafter specified in this Article. Neither the Company nor any
Person directly or indirectly controlling, controlled by, or under common
control with the Company shall serve as Trustee.

     SECTION 608. RESIGNATION AND REMOVAL; APPOINTMENT OF SUCCESSOR.

          (a) No resignation or removal of the Trustee and no appointment of a
successor Trustee pursuant to this Article shall become effective until the
acceptance of appointment by the successor Trustee in accordance with the
applicable requirements of Section 609.

          (b) The Trustee may resign at any time with respect to the Securities
of one or more series by giving written notice thereof to the Company. If an
instrument of acceptance by a successor Trustee shall not have been delivered to
the Trustee within 30 days after the giving of such notice of resignation, the
resigning Trustee may petition any court of competent jurisdiction for the
appointment of a successor Trustee.

          (c) The Trustee may be removed at any time with respect to the
Securities of any series by Act of the Holders of a majority in principal amount
of the Outstanding Securities of such series delivered to the Trustee and to the
Company.

          (d) If at any time:

               (1) the Trustee shall fail to comply with the provisions of TIA
Section 310(b) after written request therefor by the Company or by any Holder of
a Security who has been a bona fide Holder of a Security for at least six
months, or

               (2) the Trustee shall cease to be eligible under Section 607 and
shall fail to resign after written request therefor by the Company or by any
Holder of a Security who has been a bona fide Holder of a Security for at least
six months, or

               (3) the Trustee shall become incapable of acting or shall be
adjudged a bankrupt or insolvent or a receiver of the Trustee or of its property
shall be appointed 


                                       51


<PAGE>   58


     or any public officer shall take charge or control of the Trustee or of its
     property or affairs for the purpose of rehabilitation, conservation or
     liquidation,

          then, in any such case, (i) the Company by or pursuant to a Board
Resolution may remove the Trustee and appoint a successor Trustee with respect
to all Securities, or (ii) subject to TIA Section 315(e), any Holder of a
Security who has been a bona fide Holder of a Security for at least six months
may, on behalf of himself and all others similarly situated, petition any court
of competent jurisdiction for the removal of the Trustee with respect to all
Securities and the appointment of a successor Trustee or Trustees.

          (e) If the Trustee shall resign, be removed or become incapable of
acting, or if a vacancy shall occur in the office of Trustee for any cause with
respect to the Securities of one or more series, the Company, by or pursuant to
a Board Resolution, shall promptly appoint a successor Trustee or Trustees with
respect to the Securities of that or those series (it being understood that any
such successor Trustee may be appointed with respect to the Securities of one or
more or all of such series and that at any time there shall be only one Trustee
with respect to the Securities of any particular series). If, within one year
after such resignation, removal or incapability, or the occurrence of such
vacancy, a successor Trustee with respect to the Securities of any series shall
be appointed by Act of the Holders of a majority in principal amount of the
Outstanding Securities of such series delivered to the Company and the retiring
Trustee, the successor Trustee so appointed shall, forthwith upon its acceptance
of such appointment, become the successor Trustee with respect to the Securities
of such series and to that extent supersede the successor Trustee appointed by
the Company. If no successor Trustee with respect to the Securities of any
series shall have been so appointed by the Company or the Holders of Securities
and accepted appointment in the manner hereinafter provided, any Holder of a
Security who has been a bona fide Holder of a Security of such series for at
least six months may, on behalf of himself and all others similarly situated,
petition any court of competent jurisdiction for the appointment of a successor
Trustee with respect to Securities of such series.

          (f) The Company shall give notice of each resignation and each removal
of the Trustee with respect to the Securities of any series and each appointment
of a successor Trustee with respect to the Securities of any series in the
manner provided for notices to the Holders of Securities in Section 106. Each
notice shall include the name of the successor Trustee with respect to the
Securities of such series and the address of its Corporate Trust Office.

     SECTION 609. ACCEPTANCE OF APPOINTMENT BY SUCCESSOR. (a) In case of the
appointment hereunder of a successor Trustee with respect to all Securities,
every such successor Trustee so appointed shall execute, acknowledge and deliver
to the Company and to the retiring Trustee an instrument accepting such
appointment, and thereupon the resignation or removal of the retiring Trustee
shall become effective and such successor Trustee, without any further act, deed
or conveyance, shall become vested with all the rights, powers, trusts and


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<PAGE>   59


duties of the retiring Trustee; but, on request of the Company or the successor
Trustee, such retiring Trustee shall, upon payment of its charges, execute and
deliver an instrument transferring to such successor Trustee all the rights,
powers and trusts of the retiring Trustee, and shall duly assign, transfer and
deliver to such successor Trustee all property and money held by such retiring
Trustee hereunder, subject nevertheless to its claim, if any, provided for in
Section 606.

          (b) In case of the appointment hereunder of a successor Trustee with
respect to the Securities of one or more (but not all) series, the Company, the
retiring Trustee and each successor Trustee with respect to the Securities of
one or more series shall execute and deliver an indenture supplemental hereto,
pursuant to Article Nine hereof, wherein each successor Trustee shall accept
such appointment and which (1) shall contain such provisions as shall be
necessary or desirable to transfer and confirm to, and to vest in, each
successor Trustee all the rights, powers, trusts and duties of the retiring
Trustee with respect to the Securities of that or those series to which the
appointment of such successor Trustee relates, (2) if the retiring Trustee is
not retiring with respect to all Securities, shall contain such provisions as
shall be deemed necessary or desirable to confirm that all the rights, powers,
trusts and duties of the retiring Trustee with respect to the Securities of that
or those series as to which the retiring Trustee is not retiring shall continue
to be vested in the retiring Trustee, and (3) shall add to or change any of the
provisions of this Indenture as shall be necessary to provide for or facilitate
the administration of the trusts hereunder by more than one Trustee, it being
understood that nothing herein or in such supplemental indenture shall
constitute such Trustees co-trustees of the same trust and that each such
Trustee shall be trustee of a trust or trusts hereunder separate and apart from
any trust or trusts hereunder administered by any other such Trustee; and upon
the execution and delivery of such supplemental indenture the resignation or
removal of the retiring Trustee shall become effective to the extent provided
therein and each such successor Trustee, without any further act, deed or
conveyance, shall become vested with all the rights, powers, trusts and duties
of the retiring Trustee with respect to the Securities of that or those series
to which the appointment of such successor Trustee relates; but, on request of
the Company or any successor Trustee, such retiring Trustee shall duly assign,
transfer and deliver to such successor Trustee all property and money held by
such retiring Trustee hereunder with respect to the Securities of that or those
series to which the appointment of such successor Trustee relates.

          (c) Upon request of any such successor Trustee, the Company shall
execute any and all instruments for more fully and certainly vesting in and
confirming to such successor Trustee all such rights, powers and trusts referred
to in paragraph (a) or (b) of this Section 609, as the case may be.

          (d) No successor Trustee shall accept its appointment unless at the
time of such acceptance such successor Trustee shall be qualified and eligible
under this Article.


                                       53


<PAGE>   60


     SECTION 610. MERGER, CONVERSION, CONSOLIDATION OR SUCCESSION TO BUSINESS.
Any corporation into which the Trustee may be merged or converted or with which
it may be consolidated, or any corporation resulting from any merger, conversion
or consolidation to which the Trustee shall be a party, or any corporation
succeeding to all or substantially all of the corporate trust business of the
Trustee, shall be the successor of the Trustee hereunder, PROVIDED such
corporation shall be otherwise qualified and eligible under this Article,
without the execution or filing of any paper or any further act on the part of
any of the parties hereto. In case any Securities or coupons shall have been
authenticated, but not delivered, by the Trustee then in office, any successor
by merger, conversion or consolidation to such authenticating Trustee may adopt
such authentication and deliver the Securities or coupons so authenticated with
the same effect as if such successor Trustee had itself authenticated such
Securities or coupons. In case any Securities or coupons shall not have been
authenticated by such predecessor Trustee, any such successor Trustee may
authenticate and deliver such Securities or coupons, in either its own name or
that of its predecessor Trustee, with the full force and effect which this
Indenture provides for the certificate of authentication of the Trustee.

     SECTION 611. APPOINTMENT OF AUTHENTICATING AGENT. At any time when any of
the Securities remain Outstanding, the Trustee may appoint an Authenticating
Agent or Agents with respect to one or more series of Securities which shall be
authorized to act on behalf of the Trustee to authenticate Securities of such
series issued upon exchange, registration of transfer or partial redemption or
repayment thereof, and Securities so authenticated shall be entitled to the
benefits of this Indenture and shall be valid and obligatory for all purposes as
if authenticated by the Trustee hereunder. Any such appointment shall be
evidenced by an instrument in writing signed by a Responsible Officer of the
Trustee, a copy of which instrument shall be promptly furnished to the Company.
Wherever reference is made in this Indenture to the authentication and delivery
of Securities by the Trustee or the Trustee's certificate of authentication,
such reference shall be deemed to include authentication and delivery on behalf
of the Trustee by an Authenticating Agent and a certificate of authentication
executed on behalf of the Trustee by an Authenticating Agent. Each
Authenticating Agent shall be acceptable to the Company and shall at all times
be a bank or trust company or corporation organized and doing business and in
good standing under the laws of the United States of America or of any state or
the District of Columbia, authorized under such laws to act as Authenticating
Agent, having a combined capital and surplus of not less than $50,000,000 and
subject to supervision or examination by Federal or state authorities. If such
Authenticating Agent publishes reports of condition at least annually, pursuant
to law or the requirements of the aforesaid supervising or examining authority,
then for the purposes of this Section, the combined capital and surplus of such
Authenticating Agent shall be deemed to be its combined capital and surplus as
set forth in its most recent report of condition so published. In case at any
time an Authenticating Agent shall cease to be eligible in accordance with the
provisions of this Section, such Authenticating Agent shall resign immediately
in the manner and with the effect specified in this Section.


                                       54


<PAGE>   61


     Any corporation into which an Authenticating Agent may be merged or
converted or with which it may be consolidated, or any corporation resulting
from any merger, conversion or consolidation to which such Authenticating Agent
shall be a party, or any corporation succeeding to the corporate agency or
corporate trust business of an Authenticating Agent, shall continue to be an
Authenticating Agent, provided such corporation shall be otherwise eligible
under this Section, without the execution or filing of any paper or further act
on the part of the Trustee or the Authenticating Agent.

     An Authenticating Agent for any series of Securities may at any time resign
by giving written notice of resignation to the Trustee for such series and to
the Company. The Trustee for any series of Securities may at any time terminate
the agency of an Authenticating Agent by giving written notice of termination to
such Authenticating Agent and to the Company. Upon receiving such a notice of
resignation or upon such a termination, or in case at any time such
Authenticating Agent shall cease to be eligible in accordance with the
provisions of this Section, the Trustee for such series may appoint a successor
Authenticating Agent which shall be acceptable to the Company and shall give
notice of such appointment to all Holders of Securities of the series with
respect to which such Authenticating Agent will serve in the manner set forth in
Section 106. Any successor Authenticating Agent upon acceptance of its
appointment hereunder shall become vested with all the rights, powers and duties
of its predecessor hereunder, with like effect as if originally named as an
Authenticating Agent herein. No successor Authenticating Agent shall be
appointed unless eligible under the provisions of this Section.

     The Company agrees to pay to each Authenticating Agent from time to time
reasonable compensation including reimbursement of its reasonable expenses for
its services under this Section.

     If an appointment with respect to one or more series is made pursuant to
this Section, the Securities of such series may have endorsed thereon, in
addition to or in lieu of the Trustee's certificate of authentication, an
alternate certificate of authentication substantially in the following form:


                                       55


<PAGE>   62


     This is one of the Securities of the series designated therein referred to
in the within-mentioned Indenture.

                                                STATE STREET BANK AND TRUST 
                                                COMPANY

                                                   as Trustee

Dated: ____________                             By:
                                                   ----------------------------
                                                   as Authenticating Agent

Dated: ____________                             By:
                                                   ----------------------------
                                                   Authorized Signatory

      SECTION 612. CERTAIN DUTIES AND RESPONSIBILITIES OF THE TRUSTEE.

     (a) With respect to the Securities of any series, except during the
continuance of an Event of Default with respect to the Securities of such
series:

          (1) the Trustee undertakes to perform such duties and only such duties
     as are specifically set forth in this Indenture, and no implied covenants
     or obligations shall be read into this Indenture against the Trustee; and

          (2) in the absence of bad faith on its part, the Trustee may
     conclusively rely, as to the truth of the statements and the correctness of
     the opinions expressed therein, upon certificates or opinions furnished to
     the Trustee and conforming to the requirements of this Indenture; but in
     the case of any such certificates or opinions which by any provision hereof
     are specifically required to be furnished to the Trustee, the Trustee shall
     be under a duty to examine the same to determine whether or not they
     conform to the requirements of this Indenture, but shall not be under any
     duty to verify the contents or accuracy thereof.

     (b) In case an Event of Default with respect to the Securities of any
series has occurred and is continuing, the Trustee shall, with respect to
Securities of such series, exercise such of the rights and powers vested in it
by this Indenture, and use the same degree of care and skill in their exercise,
as a prudent man would exercise or use under the circumstances in the conduct of
his own affairs.

     (c) No provision of this Indenture shall be construed to relieve the
Trustee from liability for its own negligent action, its own negligent failure
to act, or its own willful misconduct, except that:


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<PAGE>   63


          (1) this Subsection shall not be construed to limit the effect of
     Subsection (a) of this Section;

          (2) the Trustee shall not be liable for any error of judgment made in
     good faith by a Responsible Officer, unless it shall be proved that the
     Trustee was negligent in ascertaining the pertinent facts;

          (3) the Trustee shall not be liable with respect to any action taken
     or omitted to be taken by it in good faith in accordance with the direction
     of the Holders of a majority in principal amount of the Outstanding
     Securities of any series relating to the time, method and place of
     conducting any proceeding for any remedy available to the Trustee, or
     exercising any trust or power conferred upon the Trustee, under this
     Indenture with respect to the Securities of such series;

          (4) no provision of this Indenture shall require the Trustee to expend
     or risk its own funds or otherwise incur any financial liability in the
     performance of any of its duties hereunder, or in the exercise of any of
     its rights or powers, if it shall have reasonable grounds for believing
     that repayment of such funds or adequate indemnity against such risk or
     liability is not reasonably assured to it; and

          (5) The Trustee shall not be charged with notice or knowledge of any
     event or matter the occurrence of which would require it to take action or
     omit to take action hereunder unless such event or matter is actually known
     to a Responsible Officer of the Trustee or unless written notice thereof
     (making reference to this Agreement or the Securities) has been received by
     the Trustee at its Corporate Trust Office.

     (d) Whether or not therein expressly so provided, every provision of this
Indenture relating to the conduct or affecting the liability of or affording
protection to the Trustee shall be subject to the provisions of this Section
612.

        ARTICLE SEVEN - HOLDERS' LISTS AND REPORTS BY TRUSTEE AND COMPANY

     SECTION 701. DISCLOSURE OF NAMES AND ADDRESSES OF HOLDERS. Every Holder of
Securities or coupons, by receiving and holding the same, agrees with the
Company and the Trustee that neither the Company nor the Trustee nor any
Authenticating Agent nor any Paying Agent nor any Security Registrar shall be
held accountable by reason of the disclosure of any information as to the names
and addresses of the Holders of Securities in accordance with TIA Section 312,
regardless of the source from which such information was derived, and that the
Trustee shall not be held accountable by reason of mailing any material pursuant
to a request made under TIA Section 312(b).


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<PAGE>   64


     SECTION 702. REPORTS BY TRUSTEE. The Trustee shall transmit to Holders such
reports concerning the Trustee and its actions under this Indenture as may be
required by TIA Section 313 at the times and in the manner provided by the TIA,
which shall initially be not less than every twelve months commencing on July
15, 1998. A copy of each such report shall, at the time of such transmission to
Holders, be filed by the Trustee with each stock exchange, if any, upon which
any Securities are listed, with the Commission and with the Company. The Company
will notify the Trustee when any Securities are listed on any stock exchange.

     SECTION 703. REPORTS BY COMPANY. The Company will:

          (1) file with the Trustee, within 15 days after the Company is
     required to file the same with the Commission, copies of the annual reports
     and of the information, documents and other reports (or copies of such
     portions of any of the foregoing as the Commission may from time to time by
     rules and regulations prescribe) which the Company may be required to file
     with the Commission pursuant to Section 13 or Section 15(d) of the
     Securities Exchange Act of 1934; or, if the Company is not required to file
     information, documents or reports pursuant to either of such Sections, then
     it will file with the Trustee and the Commission, in accordance with rules
     and regulations prescribed from time to time by the Commission, such of the
     supplementary and periodic information, documents and reports which may be
     required pursuant to Section 13 of the Securities Exchange Act of 1934 in
     respect of a security listed and registered on a national securities
     exchange as may be prescribed from time to time in such rules and
     regulations;

          (2) file with the Trustee and the Commission, in accordance with rules
     and regulations prescribed from time to time by the Commission, such
     additional information, documents and reports with respect to compliance by
     the Company with the conditions and covenants of this Indenture as may be
     required from time to time by such rules and regulations; and

          (3) transmit by mail to the Holders of Securities, within 30 days
     after the filing thereof with the Trustee, in the manner and to the extent
     provided in TIA Section 313(c), such summaries of any information,
     documents and reports required to be filed by the Company pursuant to
     paragraphs (1) and (2) of this Section as may be required by rules and
     regulations prescribed from time to time by the Commission.

     SECTION 704. COMPANY TO FURNISH TRUSTEE NAMES AND ADDRESSES OF HOLDERS.
The Company will furnish or cause to be furnished to the Trustee:

     (a) semiannually, not later than 15 days after the Regular Record Date for
interest for each series of Securities, a list, in such form as the Trustee may
reasonably require, of the names and addresses of the Holders of Registered
Securities of such series as of 


                                       58


<PAGE>   65
such Regular Record Date, or if there is no Regular Record Date for interest for
such series of Securities, semiannually, upon such dates as are set forth in the
Board Resolution or indenture supplemental hereto authorizing such series, and

     (b) at such other times as the Trustee may request in writing, within 30
days after the receipt by the Company of any such request, a list of similar
form and content as of a date not more than 15 days prior to the time such list
is furnished,

PROVIDED, HOWEVER, that, so long as the Trustee is the Security Registrar, no
such list shall be required to be furnished.

        ARTICLE EIGHT - CONSOLIDATION, MERGER, SALE, LEASE OR CONVEYANCE

     SECTION 801. CONSOLIDATIONS AND MERGERS OF COMPANY AND SALES, LEASES AND
CONVEYANCES PERMITTED SUBJECT TO CERTAIN CONDITIONS. The Company may
consolidate with, or sell, lease or convey all or substantially all of its
assets to, or merge with or into any other corporation, provided that in any
such case, (1) either the Company shall be the continuing corporation, or the
successor corporation shall be a corporation organized and existing under the
laws of the United States, any state thereof or the District of Columbia and
such person shall expressly assume the due and punctual payment of the principal
of (and premium, if any) and any interest on all of the Securities, according to
their tenor, and the due and punctual performance and observance of all of the
covenants and conditions of this Indenture to be performed by the Company by
supplemental indenture, complying with Article Nine hereof, satisfactory to the
Trustee, executed and delivered to the Trustee by such corporation and (2)
immediately after giving effect to such transaction and treating any
indebtedness which becomes an obligation of the Company or any Subsidiary as a
result thereof as having been incurred by the Company or such Subsidiary at the
time of such transaction, no Event of Default, and no event which, after notice
or the lapse of time, or both, would become an Event of Default, shall have
occurred and be continuing.

           SECTION 802. RIGHTS AND DUTIES OF SUCCESSOR CORPORATION. In case of
any such consolidation, merger, sale, lease or conveyance and upon any such
assumption by the successor corporation, such successor corporation shall
succeed to and be substituted for the Company, with the same effect as if it had
been named herein as the party of the first part, and the predecessor
corporation, except in the event of a lease, shall be relieved of any further
obligation under this Indenture and the Securities. Such successor corporation
thereupon may cause to be signed, and may issue either in its own name or in the
name of the Company, any or all of the Securities issuable hereunder which
theretofore shall not have been signed by the Company and delivered to the
Trustee; and, upon the order of such successor corporation, instead of the
Company, and subject to all the terms, conditions and limitations in this
Indenture prescribed, the Trustee shall authenticate and shall deliver any
Securities which previously shall have been signed and delivered by the officers
of the Company to the Trustee 


                                       59


<PAGE>   66


for authentication, and any Securities which such successor corporation
thereafter shall cause to be signed and delivered to the Trustee for that
purpose. All the Securities so issued shall in all respects have the same legal
rank and benefit under this Indenture as the Securities theretofore or
thereafter issued in accordance with the terms of this Indenture as though all
of such Securities had been issued at the date of the execution hereof.

     In case of any such consolidation, merger, sale, lease or conveyance, such
changes in phraseology and form (but not in substance) may be made in the
Securities thereafter to be issued as may be appropriate.

     SECTION 803. OFFICERS' CERTIFICATE AND OPINION OF COUNSEL. Any
consolidation, merger, sale, lease or conveyance permitted under Section 801 is
also subject to the condition that the Trustee receive an Officers' Certificate
and an Opinion of Counsel to the effect that any such consolidation, merger,
sale, lease or conveyance, and the assumption by any successor corporation,
complies with the provisions of this Article and that all conditions precedent
herein provided for relating to such transaction have been complied with.

                     ARTICLE NINE - SUPPLEMENTAL INDENTURES

     SECTION 901. SUPPLEMENTAL INDENTURES WITHOUT CONSENT OF HOLDERS. Without
the consent of any Holders of Securities or coupons, the Company, when
authorized by or pursuant to a Board Resolution, and the Trustee, at any time
and from time to time, may enter into one or more indentures supplemental
hereto, in form satisfactory to the Trustee, for any of the following purposes:

          (1) to evidence the succession of another Person to the Company and
     the assumption by any such successor of the covenants of the Company
     contained herein and in the Securities; or

          (2) to add to the covenants of the Company for the benefit of the
     Holders of all or any series of Securities (and if such covenants are to be
     for the benefit of less than all series of Securities, stating that such
     covenants are expressly being included solely for the benefit of such
     series) or to surrender any right or power herein conferred upon the
     Company; or

          (3) to add any additional Events of Default for the benefit of the
     Holders of all or any series of Securities (and if such Events of Default
     are to be for the benefit of less than all series of Securities, stating
     that such Events of Default are expressly being included solely for the
     benefit of such series); PROVIDED, HOWEVER, that in respect of any such
     additional Events of Default such supplemental indenture may provide for a
     particular period of grace after default (which period may be shorter or
     longer than that allowed in the case of other defaults) or may provide for
     an immediate


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<PAGE>   67


     enforcement upon such default or may limit the remedies available to the
     Trustee upon such default or may limit the right of the Holders of a
     majority in aggregate principal amount of that or those series of
     Securities to which such additional Events of Default apply to waive such
     default; or

          (4) to add to or change any of the provisions of this Indenture to
     provide that Bearer Securities may be registrable as to principal, to
     change or eliminate any restrictions on the payment of principal of or
     premium or Make-Whole Amount, if any, or interest on Bearer Securities, to
     permit Bearer Securities to be issued in exchange for Registered
     Securities, to permit Bearer Securities to be issued in exchange for Bearer
     Securities of other authorized denominations or to permit or facilitate the
     issuance of Securities in uncertificated form, PROVIDED that any such
     action shall not adversely affect the interests of the Holders of
     Securities of any series or any related coupons in any material respect; or

          (5) to change or eliminate any of the provisions of this Indenture,
     PROVIDED that any such change or elimination shall become effective only
     when there is no Security Outstanding of any series created prior to the
     execution of such supplemental indenture which is entitled to the benefit
     of such provision; or

          (6) to secure the Securities; or

          (7) to establish the form or terms of Securities of any series and any
     related coupons as permitted by Sections 201 and 301; or

          (8) to evidence and provide for the acceptance of appointment
     hereunder by a successor Trustee with respect to the Securities of one or
     more series and to add to or change any of the provisions of this Indenture
     as shall be necessary to provide for or facilitate the administration of
     the trusts hereunder by more than one Trustee; or

          (9) to cure any ambiguity, to correct or supplement any provision
     herein which may be defective or inconsistent with any other provision
     herein, or to make any other provisions with respect to matters or
     questions arising under this Indenture which shall not be inconsistent with
     the provisions of this Indenture, PROVIDED such provisions shall not
     adversely affect the interests of the Holders of Securities of any series
     or any related coupons in any material respect; or

          (10) to supplement any of the provisions of this Indenture to such
     extent as shall be necessary to permit or facilitate the defeasance and
     discharge of any series of Securities pursuant to Sections 401, 1402 and
     1403; PROVIDED that any such action shall not adversely affect the
     interests of the Holders of Securities of such series and any related
     coupons or any other series of Securities in any material respect.


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<PAGE>   68


     SECTION 902. SUPPLEMENTAL INDENTURES WITH CONSENT OF HOLDERS. With the
consent of the Holders of not less than a majority in principal amount of all
Outstanding Securities affected by such supplemental indenture, by Act of said
Holders delivered to the Company and the Trustee, the Company, when authorized
by or pursuant to a Board Resolution, and the Trustee may enter into an
indenture or indentures supplemental hereto for the purpose of adding any
provisions to or changing in any manner or eliminating any of the provisions of
this Indenture or of modifying in any manner the rights of the Holders of
Securities and any related coupons under this Indenture; PROVIDED, HOWEVER, that
no such supplemental indenture shall, without the consent of the Holder of each
Outstanding Security affected thereby:

          (1) change the Stated Maturity of the principal of (or premium or
     Make-Whole Amount, if any, on) or any installment of principal of or
     interest on, any Security; or reduce the principal amount thereof or the
     rate or amount of interest thereon, or any premium or Make-Whole Amount
     payable upon the redemption thereof, or reduce the amount of the principal
     of an Original Issue Discount Security that would be due and payable upon a
     declaration of acceleration of the Maturity thereof pursuant to Section 502
     or the amount thereof provable in bankruptcy pursuant to Section 504, or
     adversely affect any right of repayment at the option of the Holder of any
     Security, or change any Place of Payment where, or the currency or
     currencies, currency unit or units or composite currency or currencies in
     which, any Security or any premium or Make-Whole Amount or the interest
     thereon is payable, or impair the right to institute suit for the
     enforcement of any such payment on or after the Stated Maturity thereof
     (or, in the case of redemption or repayment at the option of the Holder, on
     or after the Redemption Date or the Repayment Date, as the case may be), or

          (2) reduce the percentage in principal amount of the Outstanding
     Securities of any series, the consent of whose Holders is required for any
     such supplemental indenture, or the consent of whose Holders is required
     for any waiver with respect to such series (or compliance with certain
     provisions of this Indenture or certain defaults hereunder and their
     consequences) provided for in this Indenture, or reduce the requirements of
     Section 1504 for quorum or voting, or

          (3) modify any of the provisions of this Section, Section 513 or
     Section 1009, except to increase the required percentage to effect such
     action or to provide that certain other provisions of this Indenture cannot
     be modified or waived without the consent of the Holder of each Outstanding
     Security affected thereby, PROVIDED, HOWEVER, that this clause shall not be
     deemed to require the consent of any Holder with respect to changes in the
     references to "the Trustee" and concomitant changes in this Section 902 and
     Section 1009, or the deletion of this proviso, in accordance with the
     requirements of Sections 609(b) and 901(11).


                                       62


<PAGE>   69


     It shall not be necessary for any Act of Holders under this Section 902 to
approve the particular form of any proposed supplemental indenture, but it shall
be sufficient if such Act shall approve the substance thereof.

     A supplemental indenture which changes or eliminates any covenant or other
provision of this Indenture which has expressly been included solely for the
benefit of one or more particular series of Securities, or which modifies the
rights of the Holders of Securities of such series with respect to such covenant
or other provision, shall be deemed not to affect the rights under this
Indenture of the Holders of Securities of any other series.

     SECTION 903. EXECUTION OF SUPPLEMENTAL INDENTURES. In executing, or
accepting the additional trusts created by, any supplemental indenture permitted
by this Article or the modification thereby of the trusts created by this
Indenture, the Trustee shall be entitled to receive, and shall be fully
protected in relying upon, an Opinion of Counsel stating that the execution of
such supplemental indenture is authorized or permitted by this Indenture. The
Trustee may, but shall not be obligated to, enter into any such supplemental
indenture which affects the Trustee's own rights, duties or immunities under
this Indenture or otherwise.

     SECTION 904. EFFECT OF SUPPLEMENTAL INDENTURES. Upon the execution of any
supplemental indenture under this Article, this Indenture shall be modified in
accordance therewith, and such supplemental indenture shall form a part of this
Indenture for all purposes; and every Holder of Securities theretofore or
thereafter authenticated and delivered hereunder and of any coupon appertaining
thereto shall be bound thereby.

     SECTION 905. CONFORMITY WITH TRUST INDENTURE ACT. Every supplemental
indenture executed pursuant to this Article shall conform to the requirements of
the Trust Indenture Act as then in effect.

     SECTION 906. REFERENCE IN SECURITIES TO SUPPLEMENTAL INDENTURES. Securities
of any series authenticated and delivered after the execution of any
supplemental indenture pursuant to this Article may, and shall, if required by
the Trustee, bear a notation in form approved by the Trustee as to any matter
provided for in such supplemental indenture. If the Company shall so determine,
new Securities of any series so modified as to conform, in the opinion of the
Trustee and the Company, to any such supplemental indenture may be prepared and
executed by the Company and authenticated and delivered by the Trustee in
exchange for Outstanding Securities of such series.

                             ARTICLE TEN - COVENANTS

     SECTION 1001. PAYMENT OF PRINCIPAL, PREMIUM OR MAKE-WHOLE AMOUNT, IF ANY;
AND INTEREST. The Company covenants and agrees for the benefit of the Holders of
each series of Securities that it will duly and punctually pay the principal of
(and premium or Make-Whole 


                                       63


<PAGE>   70


Amount, if any) and interest on the Securities of that series in accordance with
the terms of such series of Securities, any coupons appertaining thereto and
this Indenture. Unless otherwise specified as contemplated by Section 301 with
respect to any series of Securities, any interest due on Bearer Securities on or
before Maturity shall be payable only upon presentation and surrender of the
several coupons for such interest installments as are evidenced thereby as they
severally mature. Unless otherwise specified with respect to Securities of any
series pursuant to Section 301, at the option of the Company, all payments of
principal may be paid by check to the registered Holder of the Registered
Security or other person entitled thereto against surrender of such Security.

     SECTION 1002. MAINTENANCE OF OFFICE OR AGENCY. If Securities of a series
are issuable only as Registered Securities, the Company shall maintain in each
Place of Payment for any series of Securities an office or agency where
Securities of that series may be presented or surrendered for payment, where
Securities of that series may be surrendered for registration of transfer or
exchange and where notices and demands to or upon the Company in respect of the
Securities of that series and this Indenture may be served. If Securities of a
series are issuable as Bearer Securities, the Company will maintain: (A) in the
Borough of Manhattan, The City of New York, an office or agency where any
Registered Securities of that series may be presented or surrendered for
payment, where any Registered Securities of that series may be surrendered for
registration of transfer, where Securities of that series may be surrendered for
exchange, where notices and demands to or upon the Company in respect of the
Securities of that series and this Indenture may be served and where Bearer
Securities of that series and related coupons may be presented or surrendered
for payment in the circumstances described in the following paragraph (and not
otherwise); (B) subject to any laws or regulations applicable thereto, in a
Place of Payment for that series which is located outside the United States, an
office or agency where Securities of that series and related coupons may be
presented and surrendered for payment; PROVIDED, HOWEVER, that if the Securities
of that series are listed on any stock exchange located outside the United
States and such stock exchange shall so require, the Company will maintain a
Paying Agent for the Securities of that series in any required city located
outside the United States, as the case may be, so long as the Securities of that
series are listed on such exchange; and (C) subject to any laws or regulations
applicable thereto, in a Place of Payment for that series located outside the
United States an office or agency where any Registered Securities of that series
may be surrendered for registration of transfer, where Securities of that series
may be surrendered for exchange and where notices and demands to or upon the
Company in respect of the Securities of that series and this Indenture may be
served. The Company will give prompt written notice to the Trustee of the
location, and any change in the location, of each such office or agency. If at
any time the Company shall fail to maintain any such required office or agency
or shall fail to furnish the Trustee with the address thereof, such
presentations, surrenders, notices and demands may be made or served at the
Corporate Trust Office of the Trustee, except that Bearer Securities of that
series and the related coupons may be presented and surrendered for payment at
the offices specified in the Security, in London, England, and the Company
hereby appoints the same as its agent to receive such 


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<PAGE>   71


respective presentations, surrenders, notices and demands, and the Company
hereby appoints the Trustee its agent to receive all such presentations,
surrenders, notices and demands.

     Unless otherwise specified with respect to any Securities pursuant to
Section 301, no payment of principal, premium or Make-Whole Amount or interest
on Bearer Securities shall be made at any office or agency of the Company in the
United States or by check mailed to any address in the United States or by
transfer to an account maintained with a bank located in the United States;
PROVIDED, HOWEVER, that, if the Securities of a series are payable in Dollars,
payment of principal of and any premium or Make-Whole Amount and interest on any
Bearer Security shall be made upon presentment or surrender thereof for payment
at the office of the Company's Paying Agent in the Borough of Manhattan, The
City of New York, if (but only if) payment in Dollars of the full amount of such
principal, premium or Make-Whole Amount, or interest, as the case may be, at all
offices or agencies outside the United States maintained for the purpose by the
Company in accordance with this Indenture, is illegal or effectively precluded
by exchange controls or other similar restrictions.

     The Company may from time to time designate one or more other offices or
agencies where the Securities of one or more series may be presented or
surrendered for any or all of such purposes, and may from time to time rescind
such designations; PROVIDED, HOWEVER, that no such designation or rescission
shall in any manner relieve the Company of its obligation to maintain an office
or agency in accordance with the requirements set forth above for Securities of
any series for such purposes. The Company will give prompt written notice to the
Trustee of any such designation or rescission and of any change in the location
of any such other office or agency. Unless otherwise specified with respect to
any Securities pursuant to Section 301 with respect to a series of Securities,
the Company hereby designates as its office where each series of Securities may
be presented and surrendered for payment, the office or agency of the Company in
the Borough of Manhattan, The City of New York, and initially appoints State
Street Bank and Trust Company, N.A., 61 Broadway, New York, NY 10006, and
appoints as a Place of Payment as its agent in such city to receive all such
presentations, surrenders, notices and demands.

     Unless otherwise specified with respect to any Securities pursuant to
Section 301, if and so long as the Securities of any series (i) are denominated
in a Foreign Currency or (ii) may be payable in a Foreign Currency, or so long
as it is required under any other provision of the Indenture, then the Company
will maintain with respect to each such series of Securities, or as so required,
at least one exchange rate agent.

     SECTION 1003. MONEY FOR SECURITIES PAYMENTS TO BE HELD IN TRUST. If the
Company shall at any time act as its own Paying Agent with respect to any series
of any Securities and any related coupons, it will, on or before each due date
of the principal of (and premium or Make-Whole Amount, if any), or interest on
any of the Securities of that series, segregate and hold in trust for the
benefit of the Persons entitled thereto a sum in the currency or currencies,
currency unit or units or composite currency or currencies in which the
Securities of such 


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<PAGE>   72


series are payable (except as otherwise specified pursuant to Section 301 for
the Securities of such series) sufficient to pay the principal (and premium or
Make-Whole Amount, if any) or interest so becoming due until such sums shall be
paid to such Persons or otherwise disposed of as herein provided, and will
promptly notify the Trustee of its action or failure so to act.

     Whenever the Company shall have one or more Paying Agents for any series of
Securities and any related coupons, it will, on or before each due date of the
principal of (and premium or Make-Whole Amount, if any), or interest on any
Securities of that series, deposit with a Paying Agent a sum (in the currency or
currencies, currency unit or units or composite currency or currencies described
in the preceding paragraph) sufficient to pay the principal (and premium or
Make-Whole Amount, if any) or interest so becoming due, such sum to be held in
trust for the benefit of the Persons entitled to such principal, premium or
Make-Whole Amount, if any, or interest and (unless such Paying Agent is the
Trustee) the Company will promptly notify the Trustee of its action or failure
so to act.

     The Company will cause each Paying Agent for any series of Securities other
than the Trustee to execute and deliver to the Trustee an instrument in which
such Paying Agent shall agree with the Trustee, subject to the provisions of
this Section, that such Paying Agent will

          (1) hold all sums held by it for the payment of principal of (and
     premium or Make-Whole Amount, if any) or interest on Securities in trust
     for the benefit of the Persons entitled thereto until such sums shall be
     paid to such Persons or otherwise disposed of as herein provided;

          (2) give the Trustee notice of any default by the Company (or any
     other obligor upon the Securities) in the making of any such payment of
     principal (and premium or Make-Whole Amount, if any) or interest on the
     Securities of that series; and

          (3) at any time during the continuance of any such default upon the
     written request of the Trustee, forthwith pay to the Trustee all sums so
     held in trust by such Paying Agent.

     The Company may at any time, for the purpose of obtaining the satisfaction
and discharge of this Indenture or for any other purpose, pay, or by Company
Order direct any Paying Agent to pay, to the Trustee all sums held in trust by
the Company or such Paying Agent, such sums to be held by the Trustee upon the
same trusts as those upon which such sums were held by the Company or such
Paying Agent; and, upon such payment by any Paying Agent to the Trustee, such
Paying Agent shall be released from all further liability with respect to such
sums.

     Except as otherwise provided in the Securities of any series, any money
deposited with the Trustee or any Paying Agent, or then held by the Company, in
trust for the payment of the 


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<PAGE>   73


principal of (and premium or Make-Whole Amount, if any) or interest on any
Security of any series and remaining unclaimed for two years after such
principal (and premium or Make-Whole Amount, if any) or interest has become due
and payable shall be paid to the Company upon Company Request or (if then held
by the Company) shall be discharged from such trust; and the Holder of such
Security shall thereafter, as an unsecured general creditor, look only to the
Company for payment of such principal of (and premium or Make-Whole Amount, if
any) or interest on any Security, without interest thereon, and all liability of
the Trustee or such Paying Agent with respect to such trust money, and all
liability of the Company as trustee thereof, shall thereupon cease; PROVIDED,
HOWEVER, that the Trustee or such Paying Agent, before being required to make
any such repayment, may at the expense of the Company cause to be published
once, in an Authorized Newspaper, notice that such money remains unclaimed and
that, after a date specified therein, which shall not be less than 30 days from
the date of such publication, any unclaimed balance of such money then remaining
will be repaid to the Company.

     SECTION 1004. EXISTENCE. Subject to Article Eight, the Company will do or
cause to be done all things necessary to preserve and keep in full force and
effect its corporate existence, all material rights (by articles of
incorporation, by-laws and statute) and material franchises; PROVIDED, HOWEVER,
that the Company shall not be required to preserve any such right or franchise
if the Board of Directors shall determine that the preservation thereof is no
longer desirable in the conduct of the business of the Company.

     SECTION 1005. MAINTENANCE OF PROPERTIES. The Company will cause all of its
material properties used or useful in the conduct of its business or the
business of any Subsidiary to be maintained and kept in good condition, repair
and working order and supplied with all necessary equipment and will cause to be
made all necessary repairs, renewals, replacements, betterments and improvements
thereof, all as in the judgment of the Company may be necessary so that the
business carried on in connection therewith may be properly and advantageously
conducted at all times; PROVIDED, HOWEVER, that the Company and its Subsidiaries
shall not be prevented from selling or otherwise disposing of their properties
for value in the ordinary course of business.

     SECTION 1006. INSURANCE. The Company will cause each of its and its
Subsidiaries' insurable properties to be insured against loss or damage in an
amount at least equal to their then full insurable value with insurers of
recognized responsibility.

     SECTION 1007. PAYMENT OF TAXES AND OTHER CLAIMS. The Company will pay or
discharge or cause to be paid or discharged, before the same shall become
delinquent, (1) all taxes, assessments and governmental charges levied or
imposed upon it or any Subsidiary or upon the income, profits or property of the
Company or any Subsidiary, and (2) all lawful claims for labor, materials and
supplies which, if unpaid, might by law become a lien upon the property of the
Company or any Subsidiary; PROVIDED, HOWEVER, that the Company shall not be
required to pay or discharge or cause to be paid or discharged any such tax,
assessment, 


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<PAGE>   74


charge or claim whose amount, applicability or validity is being contested in
good faith by appropriate proceedings.

     SECTION 1008. STATEMENT AS TO COMPLIANCE. The Company will deliver to the
Trustee, within 120 days after the end of each fiscal year, a brief certificate
from the principal executive officer, principal financial officer or principal
accounting officer as to his or her knowledge of the Company's compliance with
all conditions and covenants under this Indenture and, in the event of any
noncompliance, specifying such noncompliance and the nature and status thereof.
For purposes of this Section 1008, such compliance shall be determined without
regard to any period of grace or requirement of notice under this Indenture.

     SECTION 1009. WAIVER OF CERTAIN COVENANTS. The Company may omit in any
particular instance to comply with any term, provision or condition set forth in
Sections 1004 to 1009, inclusive, if before or after the time for such
compliance the Holders of at least a majority in principal amount of all
outstanding Securities of such series, by Act of such Holders, either waive such
compliance in such instance or generally waive compliance with such covenant or
condition, but no such waiver shall extend to or affect such covenant or
condition except to the extent so expressly waived, and, until such waiver shall
become effective, the obligations of the Company and the duties of the Trustee
in respect of any such term, provision or condition shall remain in full force
and effect.

                    ARTICLE ELEVEN - REDEMPTION OF SECURITIES

     SECTION 1101. APPLICABILITY OF ARTICLE. Securities of any series which are
redeemable before their Stated Maturity shall be redeemable in accordance with
their terms and (except as otherwise specified as contemplated by Section 301
for Securities of any series) in accordance with this Article.

     SECTION 1102. ELECTION TO REDEEM; NOTICE TO TRUSTEE. The election of
the Company to redeem any Securities shall be evidenced by or pursuant to a
Board Resolution. In case of any redemption at the election of the Company of
less than all of the Securities of any series, the Company shall, at least 45
days prior to the giving of the notice of redemption in Section 1104 (unless a
shorter notice shall be satisfactory to the Trustee), notify the Trustee of such
Redemption Date and of the principal amount of Securities of such series to be
redeemed. In the case of any redemption of Securities prior to the expiration of
any restriction on such redemption provided in the terms of such Securities or
elsewhere in this Indenture, the Company shall furnish the Trustee with an
Officers' Certificate evidencing compliance with such restriction.

     SECTION 1103. SELECTION BY TRUSTEE OF SECURITIES TO BE REDEEMED. If less
than all the Securities of any series issued on the same day with the same terms
are to be redeemed, the particular Securities to be redeemed shall be selected
not more than 60 days prior to the 


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<PAGE>   75


Redemption Date by the Trustee, from the Outstanding Securities of such series
issued on such date with the same terms not previously called for redemption, by
such method as the Trustee shall deem fair and appropriate and which may provide
for the selection for redemption of portions (equal to the minimum authorized
denomination for Securities of that series or any integral multiple thereof) of
the principal amount of Securities of such series of a denomination larger than
the minimum authorized denomination for Securities of that series.

     The Trustee shall promptly notify the Company and the Security Registrar
(if other than itself) in writing of the Securities selected for redemption and,
in the case of any Securities selected for partial redemption, the principal
amount thereof to be redeemed.

     For all purposes of this Indenture, unless the context otherwise requires,
all provisions relating to the redemption of Securities shall relate, in the
case of any Security redeemed or to be redeemed only in part, to the portion of
the principal amount of such Security which has been or is to be redeemed.

     SECTION 1104. NOTICE OF REDEMPTION. Notice of redemption shall be given in
the manner provided in Section 106, not less than 30 days nor more than 60 days
prior to the Redemption Date, unless a shorter period is specified by the terms
of such series established pursuant to Section 301, to each Holder of Securities
to be redeemed, but failure to give such notice in the manner herein provided to
the Holder of any Security designated for redemption as a whole or in part, or
any defect in the notice to any such Holder, shall not affect the validity of
the proceedings for the redemption of any other such Security or portion
thereof.

     Any notice that is mailed to the Holders of Registered Securities in the
manner herein provided shall be conclusively presumed to have been duly given,
whether or not the Holder receives the notice.

     All notices of redemption shall state:

               (1) the Redemption Date,

               (2) the Redemption Price, accrued interest to the Redemption Date
          payable as provided in Section 1106, if any,

               (3) if less than all Outstanding Securities of any series are to
          be redeemed, the identification (and, in the case of partial
          redemption, the principal amount) of the particular Security or
          Securities to be redeemed,

               (4) in case any Security is to be redeemed in part only, the
          notice which relates to such Security shall state that on and after
          the Redemption Date, upon surrender of such Security, the holder will
          receive, without a charge, a new Security or 


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<PAGE>   76


          Securities of authorized denominations for the principal amount
          thereof remaining unredeemed,

               (5) that on the Redemption Date the Redemption Price and accrued
          interest to the Redemption Date payable as provided in Section 1106,
          if any, will become due and payable upon each such Security, or the
          portion thereof, to be redeemed and, if applicable, that interest
          thereon shall cease to accrue on and after said date,

               (6) the Place or Places of Payment where such Securities,
          together in the case of Bearer Securities with all coupons
          appertaining thereto, if any, maturing after the Redemption Date, are
          to be surrendered for payment of the Redemption Price and accrued
          interest, if any,

               (7) that the redemption is for a sinking fund, if such is the
          case,

               (8) that, unless otherwise specified in such notice, Bearer
          Securities of any series, if any, surrendered for redemption must be
          accompanied by all coupons maturing subsequent to the date fixed for
          redemption or the amount of any such missing coupon or coupons will be
          deducted from the Redemption Price, unless security or indemnity
          satisfactory to the Company, the Trustee for such series and any
          Paying Agent is furnished,

               (9) if Bearer Securities of any series are to be redeemed and any
          Registered Securities of such series are not to be redeemed, and if
          such Bearer Securities may be exchanged for Registered Securities not
          subject to redemption on this Redemption Date pursuant to Section 305
          or otherwise, the last date, as determined by the Company, on which
          such exchanges may be made, and

               (10) the CUSIP number of such Security, if any.

     Notice of redemption of Securities to be redeemed at the election of the
Company shall be given by the Company or, at the Company's request, by the
Trustee in the name and at the expense of the Company.

     SECTION 1105. DEPOSIT OF REDEMPTION PRICE. On or prior to any Redemption
Date, (but no later than 10:00 a.m. New York City time on such date) the Company
shall deposit with the Trustee or with a Paying Agent (or, if the Company is
acting as its own Paying Agent, which it may not do in the case of a sinking
fund payment under Article Twelve, segregate and hold in trust as provided in
Section 1003) an amount of money in the currency or currencies, currency unit or
units or composite currency or currencies in which the Securities of such series
are payable (except as otherwise specified pursuant to Section 301 for the
Securities of such series) sufficient to pay on the Redemption Date the
Redemption Price of, 


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<PAGE>   77


and (except if the Redemption Date shall be an Interest Payment Date) accrued
interest on, all the Securities or portions thereof which are to be redeemed on
that date.

     SECTION 1106. SECURITIES PAYABLE ON REDEMPTION DATE. Notice of redemption
having been given as aforesaid, the Securities so to be redeemed shall, on the
Redemption Date, become due and payable at the Redemption Price therein
specified in the currency or currencies, currency unit or units or composite
currency or currencies in which the Securities of such series are payable
(except as otherwise specified pursuant to Section 301 for the Securities of
such series) (together with accrued interest, if any, to the Redemption Date),
and from and after such date (unless the Company shall default in the payment of
the Redemption Price and accrued interest) such Securities shall, if the same
were interest-bearing, cease to bear interest and the coupons for such interest
appertaining to any Bearer Securities so to be redeemed, except to the extent
provided below, shall be void. Upon surrender of any such Security for
redemption in accordance with said notice, together with all coupons, if any,
appertaining thereto maturing after the Redemption Date, such Security shall be
paid by the Company at the Redemption Price, together with accrued interest, if
any, to the Redemption Date; PROVIDED, HOWEVER, that installments of interest on
Bearer Securities whose Stated Maturity is on or prior to the Redemption Date
shall be payable only at an office or agency located outside the United States
(except as otherwise provided in Section 1002) and, unless otherwise specified
as contemplated by Section 301, only upon presentation and surrender of coupons
for such interest; and PROVIDED further that installments of interest on
Registered Securities whose Stated Maturity is on or prior to the Redemption
Date shall be payable to the Holders of such Securities, or one or more
Predecessor Securities, registered as such at the close of business on the
relevant Record Dates according to their terms and the provisions of Section
307.

     If any Bearer Security surrendered for redemption shall not be accompanied
by all appurtenant coupons maturing after the Redemption Date, such Security may
be paid after deducting from the Redemption Price an amount equal to the face
amount of all such missing coupons, or the surrender of such missing coupon or
coupons may be waived by the Company and the Trustee if there be furnished to
them such security or indemnity as they may require to save each of them and any
Paying Agent harmless. If thereafter the Holder of such Security shall surrender
to the Trustee or any Paying Agent any such missing coupon in respect of which a
deduction shall have been made from the Redemption Price, such Holder shall be
entitled to receive the amount so deducted; PROVIDED, HOWEVER, that interest
represented by coupons shall be payable only at an office or agency located
outside the United States (except as otherwise provided in Section 1002) and,
unless otherwise specified as contemplated by Section 301, only upon
presentation and surrender of those coupons.

     If any Security called for redemption shall not be so paid upon surrender
thereof for redemption, the principal (and premium or Make-Whole Amount, if any)
shall, until paid, bear interest from the Redemption Date at the rate borne by
the Security.


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<PAGE>   78


     SECTION 1107. SECURITIES REDEEMED IN PART. Any Registered Security which is
to be redeemed only in part (pursuant to the provisions of this Article or of
Article Twelve) shall be surrendered at a Place of Payment therefor (with, if
the Company or the Trustee so requires, due endorsement by, or a written
instrument of transfer in form satisfactory to the Company and the Trustee duly
executed by, the Holder thereof or his attorney duly authorized in writing) and
the Company shall execute and the Trustee shall authenticate and deliver to the
Holder of such Security without service charge a new Security or Securities of
the same series, of any authorized denomination as requested by such Holder in
aggregate principal amount equal to and in exchange for the unredeemed portion
of the principal of the Security so surrendered. If a Global Security is so
surrendered, the Company shall execute and the Trustee shall authenticate and
deliver to the depository, without service charge, a new Global Security in a
denomination equal to and in exchange for the unredeemed portion of the
principal of the Global Security so surrendered.

                         ARTICLE TWELVE - SINKING FUNDS

     SECTION 1201. APPLICABILITY OF ARTICLE. The provisions of this Article
shall be applicable to any sinking fund for the retirement of Securities of a
series except as otherwise specified as contemplated by Section 301 for
Securities of such series.

     The minimum amount of any sinking fund payment provided for by the terms of
Securities of any series is herein referred to as a "mandatory sinking fund
payment," and any payment in excess of such minimum amount provided for by the
terms of such Securities of any series is herein referred to as an "optional
sinking fund payment." If provided for by the terms of any Securities of any
series, the cash amount of any mandatory sinking fund payment may be subject to
reduction as provided in Section 1202. Each sinking fund payment shall be
applied to the redemption of Securities of any series as provided for by the
terms of Securities of such series.

     SECTION 1202. SATISFACTION OF SINKING FUND PAYMENTS WITH SECURITIES. The
Company may, in satisfaction of all or any part of any mandatory sinking fund
payment with respect to the Securities of a series, (1) deliver Outstanding
Securities of such series (other than any previously called for redemption)
together in the case of any Bearer Securities of such series with all unmatured
coupons appertaining thereto and (2) apply as a credit Securities of such series
which have been redeemed either at the election of the Company pursuant to the
terms of such Securities or through the application of permitted optional
sinking fund payments pursuant to the terms of such Securities, as provided for
by the terms of such Securities, or which have otherwise been acquired by the
Company; PROVIDED that such Securities so delivered or applied as a credit have
not been previously so credited. Such Securities shall be received and credited
for such purpose by the Trustee at the applicable Redemption Price specified in
such Securities for redemption through operation of the sinking fund and the
amount of such mandatory sinking fund payment shall be reduced accordingly.


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<PAGE>   79


     SECTION 1203. REDEMPTION OF SECURITIES FOR SINKING FUND. Not less than 60
days prior to each sinking fund payment date for Securities of any series, the
Company will deliver to the Trustee an Officers' Certificate specifying the
amount of the next ensuing mandatory sinking fund payment for that series
pursuant to the terms of that series, the portion thereof, if any, which is to
be satisfied by payment of cash in the currency or currencies, currency unit or
units or composite currency or currencies in which the Securities of such series
are payable (except as otherwise specified pursuant to Section 301 for the
Securities of such series) and the portion thereof, if any, which is to be
satisfied by delivering and crediting Securities of that series pursuant to
Section 1202, and the optional amount, if any, to be added in cash to the next
ensuing mandatory sinking fund payment, and will also deliver to the Trustee any
Securities to be so delivered and credited. If such Officers' Certificate shall
specify an optional amount to be added in cash to the next ensuing mandatory
sinking fund payment, the Company shall thereupon be obligated to pay the amount
therein specified. Not less than 30 days before each such sinking fund payment
date the Trustee shall select the Securities to be redeemed upon such sinking
fund payment date in the manner specified in Section 1103 and cause notice of
the redemption thereof to be given in the name of and at the expense of the
Company in the manner provided in Section 1104. Such notice having been duly
given, the redemption of such Securities shall be made upon the terms and in the
manner stated in Sections 1106 and 1107.

              ARTICLE THIRTEEN - REPAYMENT AT THE OPTION OF HOLDERS

     SECTION 1301. APPLICABILITY OF ARTICLE. Repayment of Securities of any
series before their Stated Maturity at the option of Holders thereof shall be
made in accordance with the terms of such Securities, if any, and (except as
otherwise specified by the terms of such series established pursuant to Section
301) in accordance with this Article.

     SECTION 1302. REPAYMENT OF SECURITIES. Securities of any series subject to
repayment in whole or in part at the option of the Holders thereof will, unless
otherwise provided in the terms of such Securities, be repaid at a price equal
to the principal amount thereof, together with interest, if any, thereon accrued
to the Repayment Date specified in or pursuant to the terms of such Securities.
The Company covenants that on or prior to the Repayment Date it will deposit
with the Trustee or with a Paying Agent (or, if the Company is acting as its own
Paying Agent, segregate and hold in trust as provided in Section 1003) an amount
of money in the currency or currencies, currency unit or units or composite
currency or currencies in which the Securities of such series are payable
(except as otherwise specified pursuant to Section 301 for the Securities of
such series) sufficient to pay the principal (or, if so provided by the terms of
the Securities of any series, a percentage of the principal) of, and (except if
the Repayment Date shall be an Interest Payment Date) accrued interest on, all
the Securities or portions thereof, as the case may be, to be repaid on such
date.


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<PAGE>   80


     SECTION 1303. EXERCISE OF OPTION. Securities of any series subject to
repayment at the option of the Holders thereof will contain an "Option to Elect
Repayment" form on the reverse of such Securities. In order for any Security to
be repaid at the option of the Holder, the Trustee must receive at the Place of
Payment therefor specified in the terms of such Security (or at such other place
or places of which the Company shall from time to time notify the Holders of
such Securities) not earlier than 60 days nor later than 30 days prior to the
Repayment Date (1) the Security so providing for such repayment together with
the "Option to Elect Repayment" form on the reverse thereof duly completed by
the Holder (or by the Holder's attorney duly authorized in writing) or (2) a
telegram, telex, facsimile transmission or a letter from a member of a national
securities exchange, or the National Association of Securities Dealers, Inc.
("NASD"), or a commercial bank or trust company in the United States setting
forth the name of the Holder of the Security, the principal amount of the
Security, the principal amount of the Security to be repaid, the CUSIP number,
if any, or a description of the tenor and terms of the Security, a statement
that the option to elect repayment is being exercised thereby and a guarantee
that the Security to be repaid, together with the duly completed form entitled
"Option to Elect Repayment" on the reverse of the Security, will be received by
the Trustee not later than the fifth Business Day after the date of such
telegram, telex, facsimile transmission or letter; PROVIDED, HOWEVER, that such
telegram, telex, facsimile transmission or letter shall only be effective if
such Security and form duly completed are received by the Trustee by such fifth
Business Day. If less than the entire principal amount of such Security is to be
repaid in accordance with the terms of such Security, the principal amount of
such Security to be repaid, in increments of the minimum denomination for
Securities of such series, and the denomination or denominations of the Security
or Securities to be issued to the Holder for the portion of the principal amount
of such Security surrendered that is not to be repaid, must be specified. The
principal amount of any Security providing for repayment at the option of the
Holder thereof may not be repaid in part if, following such repayment, the
unpaid principal amount of such Security would be less than the minimum
authorized denomination of Securities of the series of which such Security to be
repaid is a part. Except as otherwise may be provided by the terms of any
Security providing for repayment at the option of the Holder thereof, exercise
of the repayment option by the Holder shall be irrevocable unless waived by the
Company.

     SECTION 1304. WHEN SECURITIES PRESENTED FOR REPAYMENT BECOME DUE AND
PAYABLE. If Securities of any series providing for repayment at the option of
the Holders thereof shall have been surrendered as provided in this Article and
as provided by or pursuant to the terms of such Securities, such Securities or
the portions thereof, as the case may be, to be repaid shall become due and
payable and shall be paid by the Company on the Repayment Date therein
specified, and on and after such Repayment Date (unless the Company shall
default in the payment of such Securities on such Repayment Date) such
Securities shall, if the same were interest-bearing, cease to bear interest and
the coupons for such interest appertaining to any Bearer Securities so to be
repaid, except to the extent provided below, shall be void. Upon surrender of
any such Security for repayment in accordance with such provisions, together
with all coupons, if any, appertaining thereto maturing after the Repayment
Date, the 


                                       74


<PAGE>   81


principal amount of such Security so to be repaid shall be paid by the Company,
together with accrued interest, if any, to the Repayment Date; PROVIDED,
HOWEVER, that coupons whose Stated Maturity is on or prior to the Repayment Date
shall be payable only at an office or agency located outside the United States
(except as otherwise provided in Section 1002) and, unless otherwise specified
pursuant to Section 301, only upon presentation and surrender of such coupons;
and PROVIDED FURTHER that, in the case of Registered Securities, installments of
interest, if any, whose Stated Maturity is on or prior to the Repayment Date
shall be payable (but without interest thereon, unless the Company shall default
in the payment thereof) to the Holders of such Securities, or one or more
Predecessor Securities, registered as such at the close of business on the
relevant Record Dates according to their terms and the provisions of Section
307.

     If any Bearer Security surrendered for repayment shall not be accompanied
by all appurtenant coupons maturing after the Repayment Date, such Security may
be paid after deducting from the amount payable therefor as provided in Section
1302 an amount equal to the face amount of all such missing coupons, or the
surrender of such missing coupon or coupons may be waived by the Company and the
Trustee if there be furnished to them such security or indemnity as they may
require to save each of them and any Paying Agent harmless. If thereafter the
Holder of such Security shall surrender to the Trustee or any Paying Agent any
such missing coupon in respect of which a deduction shall have been made as
provided in the preceding sentence, such Holder shall be entitled to receive the
amount so deducted; PROVIDED, HOWEVER, that interest represented by coupons
shall be payable only at an office or agency located outside the United States
(except as otherwise provided in Section 1002) and, unless otherwise specified
as contemplated by Section 301, only upon presentation and surrender of those
coupons.

     If the principal amount of any Security surrendered for repayment shall not
be so repaid upon surrender thereof, such principal amount (together with
interest, if any, thereon accrued to such Repayment Date) shall, until paid,
bear interest from the Repayment Date at the rate of interest or Yield to
Maturity (in the case of Original Issue Discount Securities) set forth in such
Security.

     SECTION 1305. SECURITIES REPAID IN PART. Upon surrender of any Registered
Security which is to be repaid in part only, the Company shall execute and the
Trustee shall authenticate and deliver to the Holder of such Security, without
service charge and at the expense of the Company, a new Registered Security or
Securities of the same series, of any authorized denomination specified by the
Holder, in an aggregate principal amount equal to and in exchange for the
portion of the principal of such Security so surrendered which is not to be
repaid.


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<PAGE>   82


              ARTICLE FOURTEEN - DEFEASANCE AND COVENANT DEFEASANCE

     SECTION 1401. APPLICABILITY OF ARTICLE; COMPANY'S OPTION TO EFFECT
DEFEASANCE OR COVENANT DEFEASANCE. If, pursuant to Section 301, provision is
made for either or both of (a) defeasance of the Securities of or within a
series under Section 1402 or (b) covenant defeasance of the Securities of or
within a series under Section 1403, then the provisions of such Section or
Sections, as the case may be, together with the other provisions of this Article
(with such modifications thereto as may be specified pursuant to Section 301
with respect to any Securities), shall be applicable to such Securities and any
coupons appertaining thereto, and the Company may at its option by Board
Resolution, at any time, with respect to such Securities and any coupons
appertaining thereto, elect to have Section 1402 (if applicable) or Section 1403
(if applicable) be applied to such Outstanding Securities and any coupons
appertaining thereto upon compliance with the conditions set forth below in this
Article.

     SECTION 1402. DEFEASANCE AND DISCHARGE. Upon the Company's exercise of the
above option applicable to this Section with respect to any Securities of or
within a series, the Company shall be deemed to have been discharged from its
obligations with respect to such Outstanding Securities and any coupons
appertaining thereto on the date the conditions set forth in Section 1404 are
satisfied (hereinafter, "defeasance"). For this purpose, such defeasance means
that the Company shall be deemed to have paid and discharged the entire
indebtedness represented by such Outstanding Securities and any coupons
appertaining thereto, which shall thereafter be deemed to be "Outstanding" only
for the purposes of Section 1405 and the other Sections of this Indenture
referred to in clauses (A) and (B) below, and to have satisfied all of its other
obligations under such Securities and any coupons appertaining thereto and this
Indenture insofar as such Securities and any coupons appertaining thereto are
concerned (and the Trustee, at the expense of the Company, shall execute proper
instruments acknowledging the same), except for the following which shall
survive until otherwise terminated or discharged hereunder: (A) the rights of
Holders of such Outstanding Securities and any coupons appertaining thereto to
receive, solely from the trust fund described in Section 1404 and as more fully
set forth in such Section, payments in respect of the principal of (and premium
or Make-Whole Amount, if any) and interest, if any, on such Securities and any
coupons appertaining thereto when such payments are due, (B) the Company's
obligations with respect to such Securities under Sections 305, 306, 1002 and
1003, (C) the rights, powers, trusts, duties and immunities of the Trustee
hereunder and (D) this Article. Subject to compliance with this Article
Fourteen, the Company may exercise its option under this Section notwithstanding
the prior exercise of its option under Section 1403 with respect to such
Securities and any coupons appertaining thereto.

     SECTION 1403. COVENANT DEFEASANCE. Upon the Company's exercise of the above
option applicable to this Section with respect to any Securities of or within a
series, the Company shall be released from its obligations under Sections 1004
to 1009, inclusive, and, if specified pursuant to Section 301, its obligations
under any other covenant contained herein or in any indenture supplemental
hereto, with respect to such Outstanding Securities and any 


                                       76


<PAGE>   83


coupons appertaining thereto on and after the date the conditions set forth in
Section 1404 are satisfied (hereinafter, "covenant defeasance"), and such
Securities and any coupons appertaining thereto shall thereafter be deemed to be
not "Outstanding" for the purposes of any direction, waiver, consent or
declaration or Act of Holders (and the consequences of any thereof) in
connection with Sections 1004 to 1009, inclusive, or such other covenant, but
shall continue to be deemed "Outstanding" for all other purposes hereunder. For
this purpose, such covenant defeasance means that, with respect to such
Outstanding Securities and any coupons appertaining thereto, the Company may
omit to comply with and shall have no liability in respect of any term,
condition or limitation set forth in any such Section or such other covenant,
whether directly or indirectly, by reason of any reference elsewhere herein to
any such Section or such other covenant or by reason of reference in any such
Section or such other covenant to any other provision herein or in any other
document and such omission to comply shall not constitute a default or an Event
of Default under Section 501(4) or 501(8) or otherwise, as the case may be, but,
except as specified above, the remainder of this Indenture and such Securities
and any coupons appertaining thereto shall be unaffected thereby.

     SECTION 1404. CONDITIONS TO DEFEASANCE OR COVENANT DEFEASANCE. The
following shall be the conditions to application of Section 1402 or Section 1403
to any Outstanding Securities of or within a series and any coupons appertaining
thereto:

          (a) The Company shall irrevocably have deposited or caused to be
deposited with the Trustee (or another trustee satisfying the requirements of
Section 607 who shall agree to comply with the provisions of this Article
Fourteen applicable to it) as trust funds in trust for the purpose of making the
following payments, specifically pledged as security for, and dedicated solely
to, the benefit of the Holders of such Securities and any coupons appertaining
thereto, (1) an amount in such currency, currencies or currency unit in which
such Securities and any coupons appertaining thereto are then specified as
payable at Stated Maturity, or (2) Government Obligations applicable to such
Securities and coupons appertaining thereto (determined on the basis of the
currency, currencies or currency unit in which such Securities and coupons
appertaining thereto are then specified as payable at Stated Maturity) which
through the scheduled payment of principal and interest in respect thereof in
accordance with their terms will provide, not later than the due date of any
payment of principal of (and premium or Make-Whole Amount, if any) and interest,
if any, on such Securities and any coupons appertaining thereto, money in an
amount, or (3) a combination thereof, in any case, in an amount, sufficient,
without consideration of any reinvestment of such principal and interest, in the
opinion of a nationally recognized firm of independent public accountants
expressed in a written certification thereof delivered to the Trustee, to pay
and discharge, and which shall be applied by the Trustee (or other qualifying
trustee) to pay and discharge, (i) the principal of (and premium or Make-Whole
Amount, if any) and interest, if any, on such Outstanding Securities and any
coupons appertaining thereto on the Stated Maturity of such principal or
installment of principal or interest and (ii) any mandatory sinking fund
payments or analogous payments applicable to such Outstanding Securities and any
coupons appertaining 


                                       77


<PAGE>   84


thereto on the day on which such payments are due and payable in accordance with
the terms of this Indenture and of such Securities and any coupons appertaining
thereto.

          (b) Such defeasance or covenant defeasance shall not result in a
breach or violation of, or constitute a default under, this Indenture or any
other material agreement or instrument to which the Company is a party or by
which it is bound.

          (c) No Event of Default or event which with notice or lapse of time or
both would become an Event of Default with respect to such Securities and any
coupons appertaining thereto shall have occurred and be continuing on the date
of such deposit or, insofar as Sections 501(7) and 501(8) are concerned, at any
time during the period ending on the 91st day after the date of such deposit (it
being understood that this condition shall not be deemed satisfied until the
expiration of such period).

          (d) In the case of an election under Section 1402, the Company shall
have delivered to the Trustee an Opinion of Counsel stating that (i) the Company
has received from, or there has been published by, the Internal Revenue Service
a ruling, or (ii) since the date of execution of this Indenture, there has been
a change in the applicable Federal income tax law, in either case to the effect
that, and based thereon such opinion shall confirm that, the Holders of such
Outstanding Securities and any coupons appertaining thereto will not recognize
income, gain or loss for Federal income tax purposes as a result of such
defeasance and will be subject to Federal income tax on the same amounts, in the
same manner and at the same times as would have been the case if such defeasance
had not occurred.

          (e) In the case of an election under Section 1403, the Company shall
have delivered to the Trustee an Opinion of Counsel to the effect that the
Holders of such Outstanding Securities and any coupons appertaining thereto will
not recognize income, gain or loss for Federal income tax purposes as a result
of such covenant defeasance and will be subject to Federal income tax on the
same amounts, in the same manner and at the same times as would have been the
case if such covenant defeasance had not occurred.

          (f) The Company shall have delivered to the Trustee an Officers'
Certificate and an Opinion of Counsel, each stating that all conditions
precedent to the defeasance under Section 1402 or the covenant defeasance under
Section 1403 (as the case may be) have been complied with and an Opinion of
Counsel to the effect that either (i) as a result of a deposit pursuant to
subsection (a) above and the related exercise of the Company's option under
Section 1402 or Section 1403 (as the case may be), registration is not required
under the Investment Company Act of 1940, as amended, by the Company, with
respect to the trust funds representing such deposit or by the Trustee for such
trust funds or (ii) all necessary registrations under said Act have been
effected.

          (g) Notwithstanding any other provisions of this Section, such
defeasance or covenant defeasance shall be effected in compliance with any
additional or substitute terms, 


                                       78


<PAGE>   85


conditions or limitations which may be imposed on the Company in connection
therewith pursuant to Section 301.

     SECTION 1405. DEPOSITED MONEY AND GOVERNMENT OBLIGATIONS TO BE HELD IN
TRUST; OTHER MISCELLANEOUS PROVISIONS. Subject to the provisions of the last
paragraph of Section 1003, all money and Government Obligations (or other
property as may be provided pursuant to Section 301) (including the proceeds
thereof) deposited with the Trustee (or other qualifying trustee, collectively
for purposes of this Section 1405, the "Trustee") pursuant to Section 1404 in
respect of any Outstanding Securities of any series and any coupons appertaining
thereto shall be held in trust and applied by the Trustee, in accordance with
the provisions of such Securities and any coupons appertaining thereto and this
Indenture, to the payment, either directly or through any Paying Agent
(including the Company acting as its own Paying Agent) as the Trustee may
determine, to the Holders of such Securities and any coupons appertaining
thereto of all sums due and to become due thereon in respect of principal (and
premium or Make-Whole Amount, if any) and interest, but such money need not be
segregated from other funds except to the extent required by law.

     Unless otherwise specified with respect to any Security pursuant to Section
301, if, after a deposit referred to in Section 1404(a) has been made, (a) the
Holder of a Security in respect of which such deposit was made is entitled to,
and does, elect pursuant to Section 301 or the terms of such Security to receive
payment in a currency or currency unit other than that in which the deposit
pursuant to Section 1404(a) has been made in respect of such Security, or (b) a
Conversion Event occurs in respect of the currency or currency unit in which the
deposit pursuant to Section 1404(a) has been made, the indebtedness represented
by such Security and any coupons appertaining thereto shall be deemed to have
been, and will be, fully discharged and satisfied through the payment of the
principal of (and premium or Make-Whole Amount, if any), and interest, if any,
on such Security as the same becomes due out of the proceeds yielded by
converting (from time to time as specified below in the case of any such
election) the amount or other property deposited in respect of such Security
into the currency or currency unit in which such Security becomes payable as a
result of such election or Conversion Event based on the applicable market
exchange rate for such currency or currency unit in effect on the second
Business Day prior to each payment date, except, with respect to a Conversion
Event, for such currency or currency unit in effect (as nearly as feasible) at
the time of the Conversion Event.

     The Company shall pay and indemnify the Trustee against any tax, fee or
other charge imposed on or assessed against the Government Obligations deposited
pursuant to Section 1404 or the principal and interest received in respect
thereof other than any such tax, fee or other charge which by law is for the
account of the Holders of such Outstanding Securities and any coupons
appertaining thereto.

     Anything in this Article to the contrary notwithstanding, subject to
Section 606, the Trustee shall deliver or pay to the Company from time to time
upon Company Request any


                                       79


<PAGE>   86


money or Government Obligations (or other property and any proceeds therefrom)
held by it as provided in Section 1404 which, in the opinion of a nationally
recognized firm of independent public accountants expressed in a written
certification thereof delivered to the Trustee, are in excess of the amount
thereof which would then be required to be deposited to effect a defeasance or
covenant defeasance, as applicable, in accordance with this Article.

               ARTICLE FIFTEEN - MEETINGS OF HOLDERS OF SECURITIES

     SECTION 1501. PURPOSES FOR WHICH MEETINGS MAY BE CALLED. A meeting of
Holders of Securities of any series may be called at any time and from time to
time pursuant to this Article to make, give or take any request, demand,
authorization, direction, notice, consent, waiver or other action provided by
this Indenture to be made, given or taken by Holders of Securities of such
series.

     SECTION 1502. CALL, NOTICE AND PLACE OF MEETINGS. (a) The Trustee may at
any time call a meeting of Holders of Securities of any series for any purpose
specified in Section 1501, to be held at such time and at such place as the
Trustee shall determine. Notice of every meeting of Holders of Securities of any
series, setting forth the time and the place of such meeting and in general
terms the action proposed to be taken at such meeting, shall be given, in the
manner provided in Section 106, not less than 20 nor more than 180 days prior to
the date fixed for the meeting.

          (b) In case at any time the Company, pursuant to a Board Resolution,
or the Holders of at least 25% in principal amount of the Outstanding Securities
of any series shall have requested the Trustee to call a meeting of the Holders
of Securities of such series for any purpose specified in Section 1501, by
written request setting forth in reasonable detail the action proposed to be
taken at the meeting, and the Trustee shall not have made the first publication
of the notice of such meeting within 20 days after receipt of such request or
shall not thereafter proceed to cause the meeting to be held as provided herein,
then the Company or the Holders of Securities of such series in the amount above
specified, as the case may be, may determine the time and the place for such
meeting and may call such meeting for such purposes by giving notice thereof as
provided in subsection (a) of this Section.

     SECTION 1503. PERSONS ENTITLED TO VOTE AT MEETINGS. To be entitled to vote
at any meeting of Holders of Securities of any series, a Person shall be (1) a
Holder of one or more Outstanding Securities of such series, or (2) a Person
appointed by an instrument in writing as proxy for a Holder or Holders of one or
more Outstanding Securities of such series by such Holder or Holders. The only
Persons who shall be entitled to be present or to speak at any meeting of
Holders of Securities of any series shall be the Persons entitled to vote at
such meeting and their counsel, any representatives of the Trustee and its
counsel and any representatives of the Company and its counsel.


                                       80


<PAGE>   87


     SECTION 1504. QUORUM; ACTION. The Persons entitled to vote a majority in
principal amount of the Outstanding Securities of a series shall constitute a
quorum for a meeting of Holders of Securities of such series; PROVIDED, HOWEVER,
that if any action is to be taken at such meeting with respect to a consent or
waiver which this Indenture expressly provides may be given by the Holders of
not less than a specified percentage in principal amount of the Outstanding
Securities of a series, the Persons entitled to vote such specified percentage
in principal amount of the Outstanding Securities of such series shall
constitute a quorum. In the absence of a quorum within 30 minutes after the time
appointed for any such meeting, the meeting shall, if convened at the request of
Holders of Securities of such series, be dissolved. In any other case the
meeting may be adjourned for a period of not less than 10 days as determined by
the chairman of the meeting prior to the adjournment of such meeting. In the
absence of a quorum at the reconvening of any such adjourned meeting, such
adjourned meeting may be further adjourned for a period of not less than 10
days; at the reconvening of any meeting adjourned or further adjourned for lack
of a quorum, the persons entitled to vote 25% in aggregate principal amount of
the then Outstanding Securities shall constitute a quorum for the taking of any
action set forth in the notice of the original meeting. Notice of the
reconvening of any adjourned meeting shall be given as provided in Section
1502(a), except that such notice need be given only once not less than five days
prior to the date on which the meeting is scheduled to be reconvened.

     Except as limited by the proviso to Section 902, any resolution presented
to a meeting or adjourned meeting duly reconvened at which a quorum is present
as aforesaid may be adopted by the affirmative vote of the persons entitled to
vote a majority in aggregate principal amount of the Outstanding Securities
represented at such meeting; PROVIDED, HOWEVER, that, except as limited by the
proviso to Section 902, any resolution with respect to any request, demand,
authorization, direction, notice, consent, waiver or other action which this
Indenture expressly provides may be made, given or taken by the Holders of a
specified percentage, which is less than a majority, in principal amount of the
Outstanding Securities of a series may be adopted at a meeting or an adjourned
meeting duly reconvened and at which a quorum is present as aforesaid by the
affirmative vote of the Holders of such specified percentage in principal amount
of the Outstanding Securities of that series.

     Any resolution passed or decision taken at any meeting of Holders of
Securities of any series duly held in accordance with this Section shall be
binding on all the Holders of Securities of such series and the related coupons,
whether or not present or represented at the meeting.

     Notwithstanding the foregoing provisions of this Section 1504, if any
action is to be taken at a meeting of Holders of Securities of any series with
respect to any request, demand, authorization, direction, notice, consent,
waiver or other action that this Indenture expressly provides may be made, given
or taken by the Holders of a specified percentage in principal amount of all
Outstanding Securities affected thereby, or of the Holders of such series and
one or more additional series:


                                       81


<PAGE>   88


               (i) there shall be no minimum quorum requirement for such
          meeting; and

               (ii) the principal amount of the Outstanding Securities of such
          series that vote in favor of such request, demand, authorization,
          direction, notice, consent, waiver or other action shall be taken into
          account in determining whether such request, demand, authorization,
          direction, notice, consent, waiver or other action has been made,
          given or taken under this Indenture.

     SECTION 1505. DETERMINATION OF VOTING RIGHTS; CONDUCT AND ADJOURNMENT OF
MEETINGS. (a) Notwithstanding any provisions of this Indenture, the Trustee may
make such reasonable regulations as it may deem advisable for any meeting of
Holders of Securities of a series in regard to proof of the holding of
Securities of such series and of the appointment of proxies and in regard to the
appointment and duties of inspectors of votes, the submission and examination of
proxies, certificates and other evidence of the right to vote, and such other
matters concerning the conduct of the meeting as it shall deem appropriate.
Except as otherwise permitted or required by any such regulations, the holding
of Securities shall be proved in the manner specified in Section 104 and the
appointment of any proxy shall be proved in the manner specified in Section 104
or by having the signature of the Person executing the proxy witnessed or
guaranteed by any trust company, bank or banker authorized by Section 104 to
certify to the holding of Bearer Securities. Such regulations may provide that
written instruments appointing proxies, regular on their face, may be presumed
valid and genuine without the proof specified in Section 104 or other proof.

          (b) The Trustee shall, by an instrument in writing appoint a temporary
chairman of the meeting, unless the meeting shall have been called by the
Company or by Holders of Securities as provided in Section 1502(b), in which
case the Company or the Holders of Securities of the series calling the meeting,
as the case may be, shall in like manner appoint a temporary chairman. A
permanent chairman and a permanent secretary of the meeting shall be elected by
vote of the Persons entitled to vote a majority in principal amount of the
Outstanding Securities of such series represented at the meeting.

          (c) At any meeting each Holder of a Security of such series or proxy
shall be entitled to one vote for each $1,000 principal amount of the
Outstanding Securities of such series held or represented by him; PROVIDED,
HOWEVER, that no vote shall be cast or counted at any meeting in respect of any
Security challenged as not Outstanding and ruled by the chairman of the meeting
to be not Outstanding. The chairman of the meeting shall have no right to vote,
except as a Holder of a Security of such series or proxy.

          (d) Any meeting of Holders of Securities of any series duly called
pursuant to Section 1502 at which a quorum is present may be adjourned from time
to time by Persons entitled to vote a majority in principal amount of the
Outstanding Securities of such series


                                       82


<PAGE>   89


represented at the meeting, and the meeting may be held as so adjourned without
further notice.

     SECTION 1506. COUNTING VOTES AND RECORDING ACTION OF MEETINGS. The vote
upon any resolution submitted to any meeting of Holders of Securities of any
series shall be by written ballots on which shall be subscribed the signatures
of the Holders of Securities of such series or of their representatives by proxy
and the principal amounts and serial numbers of the Outstanding Securities of
such series held or represented by them. The permanent chairman of the meeting
shall appoint two inspectors of votes who shall count all votes cast at the
meeting for or against any resolution and who shall make and file with the
secretary of the meeting their verified written reports in duplicate of all
votes cast at the meeting. A record, at least in duplicate, of the proceedings
of each meeting of Holders of Securities of any Series shall be prepared by the
secretary of the meeting and there shall be attached to said record the original
reports of the inspectors of votes on any vote by ballot taken thereat and
affidavits by one or more persons having knowledge of the fact, setting forth a
copy of the notice of the meeting and showing that said notice was given as
provided in Section 1502 and, if applicable, Section 1504. Each copy shall be
signed and verified by the affidavits of the permanent chairman and secretary of
the meeting and one such copy shall be delivered to the Company and another to
the Trustee to be preserved by the Trustee, the latter to have attached thereto
the ballots voted at the meeting. Any record so signed and verified shall be
conclusive evidence of the matters therein stated.


                                       83


<PAGE>   90


                              SIGNATURES AND SEALS

     IN WITNESS WHEREOF, the Company and the Trustee have caused this Indenture
to be duly executed by their respective officers thereunto duly authorized as of
the day and year first above written.

                                 WYMAN-GORDON COMPANY,

                                 By:
                                        ----------------------------------------
                                 Name:  David P. Gruber
                                 Title: Chairman and Chief Executive Officer

                                 By:
                                        ----------------------------------------
                                 Name:  Andrew C. Genor
                                 Title: Vice President, Chief Financial Officer
                                        and Treasurer

                                 STATE STREET BANK AND TRUST COMPANY, as Trustee

                                 By:
                                        ----------------------------------------
                                 Name:
                                 Title:




                                       84

<PAGE>   91


                                 ACKNOWLEDGMENT

COMMONWEALTH OF MASSACHUSETTS)

                                                               ) ss:

COUNTY OF SUFFOLK)


On the [_______________________] 1997, before me personally came
[_________________], to me known, who, being by me duly sworn, did depose and
say that he is the [__________________] of WYMAN-GORDON COMPANY, one of the
parties described in and which executed the foregoing instrument, and that he
signed his name thereto by authority of the Board of Directors.

[Notarial Seal]

--------------------------------
Notary Public
Commission Expires


COMMONWEALTH OF MASSACHUSETTS)

                                                                ) ss:

COUNTY OF SUFFOLK)


On the [____________________________] 1997, before me personally came
[_________________], to me known, who, being by me duly sworn, did depose and
say that he/she is a [______________] of STATE STREET BANK AND TRUST COMPANY,
one of the parties described in and which executed the foregoing instrument, and
that he/she signed his/her name thereto by authority of the Board of Directors.

[Notarial Seal]

--------------------------------
Notary Public
Commission Expires



                                       85
<PAGE>   92


                                   EXHIBIT A

              FORM OF REDEEMABLE OR NON-REDEEMABLE SENIOR SECURITY

                               [Face of Security]

[If the Holder of this Security (as indicated below) is The Depository Trust
Company ("DTC") or a nominee of DTC, this Security is a Global Security and the
following two legends apply:

UNLESS THIS SECURITY IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
DEPOSITORY TRUST COMPANY ("DTC"), 55 WATER STREET, NEW YORK, NEW YORK TO THE
ISSUER OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND SUCH
SECURITY ISSUED IS REGISTERED IN THE NAME OF CEDE & CO., OR SUCH OTHER NAME AS
REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC, ANY TRANSFER, PLEDGE OR OTHER
USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL, SINCE THE
REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.

UNLESS AND UNTIL THIS SECURITY IS EXCHANGED IN WHOLE OR IN PART FOR SECURITIES
IN CERTIFICATED FORM, THIS SECURITY MAY NOT BE TRANSFERRED EXCEPT AS A WHOLE BY
DTC TO A NOMINEE THEREOF OR BY A NOMINEE THEREOF TO DTC OR ANOTHER NOMINEE OF
DTC OR BY DTC OR ANY SUCH NOMINEE TO A SUCCESSOR OF DTC OR A NOMINEE OF SUCH
SUCCESSOR.]

[IF THIS SECURITY IS AN ORIGINAL ISSUE DISCOUNT SECURITY, INSERT -- FOR PURPOSES
OF SECTION 1273 and 1275 OF THE UNITED STATES INTERNAL REVENUE CODE, THE AMOUNT
OF ORIGINAL ISSUE DISCOUNT ON THIS SECURITY IS % OF ITS PRINCIPAL AMOUNT, THE
ISSUE DATE IS        , 19   [AND] THE YIELD TO MATURITY IS      %.  [THE METHOD 
USED TO DETERMINE THE AMOUNT OF ORIGINAL ISSUE DISCOUNT APPLICABLE TO THE SHORT
ACCRUAL PERIOD OF            , 19   TO          , 19  , IS    % OF THE PRINCIPAL
AMOUNT OF THIS SECURITY.]


                              WYMAN-GORDON COMPANY
                             [Designation of Series]

No. _______                                 $__________________________________


WYMAN-GORDON COMPANY, a Massachusetts corporation (herein referred to as the
"Company," which term includes any successor corporation under the Indenture
referred to on the reverse hereof), for value received, hereby promises to pay
to ______________________________ or registered assigns the principal sum of
_______ Dollars on _____________________ (the "Stated Maturity Date") [or INSERT
DATE FIXED FOR 


                                      A-1


<PAGE>   93


EARLIER REDEMPTION (the "Redemption Date," and together with the
Stated Maturity Date with respect to principal repayable on such date, the
"Maturity Date.")]

[IF THE SECURITY IS TO BEAR INTEREST PRIOR TO MATURITY, INSERT -- and to pay
interest thereon from ______________ or from the most recent Interest Payment
Date to which interest has been paid or duly provided for, semi-annually on
__________ and _________ in each year (each, an "Interest Payment Date"),
commencing __________, at the rate of __% per annum, until the principal hereof
is paid or duly provided for. The interest so payable, and punctually paid or
duly provided for, on any Interest Payment Date will, as provided in such
Indenture, be paid to the Holder in whose name this Security (or one or more
Predecessor Securities) is registered at the close of business on the Regular
Record Date for such interest, which shall be the ________ or ______ (whether or
not a Business Day), as the case may be, next preceding such Interest Payment
Date [at the office or agency of the Company maintained for such purpose;
PROVIDED, HOWEVER, that such interest may be paid, at the Company's option, by
mailing a check to such Holder at its registered address or by transfer of funds
to an account maintained by such Holder within the United States]. Any such
interest not so punctually paid or duly provided for shall forthwith cease to be
payable to the Holder on such Regular Record Date, and may be paid to the Holder
in whose name this Security (or one or more Predecessor Securities) is
registered at the close of business on a Special Record Date for the payment of
such Defaulted Interest to be fixed by the Trustee, notice whereof shall be
given to Holders of Securities of this series not less than 10 days prior to
such Special Record Date, or may be paid at any time in any other lawful manner
not inconsistent with the requirements of any securities exchange on which the
Securities of this series may be listed, and upon such notice as may be required
by such exchange, all as more fully provided in the Indenture. Interest will be
computed on the basis of a 360-day year of twelve 30-day months.]

[IF THE SECURITY IS NOT TO BEAR INTEREST PRIOR TO MATURITY, INSERT -- The
principal of this Security shall not bear interest except in the case of a
default in payment of principal upon acceleration, upon redemption or at the
[Stated] Maturity Date and in such case the overdue principal of this Security
shall bear interest at the rate of % per annum (to the extent that the payment
of such interest shall be legally enforceable), which shall accrue from the date
of such default in payment to the date payment of such principal has been made
or duly provided for. Interest on any overdue principal shall be payable on
demand. Any such interest on any overdue principal that is not so paid on demand
shall bear interest at the rate of % per annum (to the extent that the payment
of such interest shall be legally enforceable), which shall accrue from the date
of such demand for payment to the date payment of such interest has been made or
duly provided for, and such interest shall also be payable on demand.]

The principal of this Security payable on the Stated Maturity Date [or the
principal of, premium or Make-Whole Amount, if any, and, if the Redemption Date
is not an Interest Payment Date, interest on this Security payable on the
Redemption Date] will be paid against presentation of this Security at the
office or agency of the Company maintained for that 


                                      A-2


<PAGE>   94


purpose in ___________________, in such coin or currency of the United States of
America as at the time of payment is legal tender for the payment of public and
private debts.

Interest payable on this Security on any Interest Payment Date and on the
[Stated] Maturity Date [or Redemption Date, as the case may be,] will include
interest accrued from and including the next preceding Interest Payment Date in
respect of which interest has been paid or duly provided for (or from and
including ____________, if no interest has been paid on this Security) to but
excluding such Interest Payment Date or the [Stated] Maturity Date [or
Redemption Date, as the case may be.] If any Interest Payment Date or the
[Stated] Maturity Date or [Redemption Date] falls on a day that is not a
Business Day, as defined below, principal, premium or Make-Whole Amount, if any,
and/or interest payable with respect to such Interest Payment Date or [Stated]
Maturity Date [or Redemption Date, as the case may be,] will be paid on the next
succeeding Business Day with the same force and effect as if it were paid on the
date such payment was due, and no interest shall accrue on the amount so payable
for the period from and after such Interest Payment Date or [Stated] Maturity
Date [or Redemption Date, as the case may be.] "Business Day" means any day,
other than a Saturday or Sunday, on which banks in __________________ are not
required or authorized by law or executive order to close.

[IF THIS SECURITY IS A GLOBAL SECURITY, INSERT -- All payments of principal,
premium or Make-Whole Amount, if any, and interest in respect of this Security
will be made by the Company in immediately available funds.]

Reference is hereby made to the further provisions of this Security set forth on
the reverse hereof, which further provisions shall for all purposes have the
same effect as if set forth at this place.

Unless the Certificate of Authentication hereon has been executed by the Trustee
by manual signature of one of its authorized signatories, this Security shall
not be entitled to any benefit under the Indenture, or be valid or obligatory
for any purpose.

IN WITNESS WHEREOF, the Company has caused this instrument to be duly executed
under its facsimile corporate seal.

Dated:                                           WYMAN-GORDON COMPANY
      --------------
                                                 By:
                                                    ---------------------------
Attest:

--------------------
Secretary


                                      A-3


<PAGE>   95


This is one of the Securities of the series designated therein referred to in
the within- mentioned Indenture.

                                             STATE STREET BANK AND TRUST
                                             COMPANY, as Trustee

Dated:                                       By:
                                                ------------------------------
                                             Name:
                                             Title:






                                      A-4


<PAGE>   96


                              [Reverse of Security]

                              WYMAN-GORDON COMPANY

This Security is one of a duly authorized issue of securities of the Company
(herein called the "Securities"), issued and to be issued in one or more series
under an Indenture, dated as of _____________, 199_ (herein called the
"Indenture") between the Company and _________________, as Trustee (herein
called the "Trustee," which term includes any successor trustee under the
Indenture with respect to the series of which this Security is a part), to which
Indenture and all indentures supplemental thereto reference is hereby made for a
statement of the respective rights, limitations of rights, duties and immunities
thereunder of the Company, the Trustee and the Holders of the Securities, and of
the terms upon which the Securities are, and are to be, authenticated and
delivered. This Security is one of the duly authorized series of Securities
designated on the face hereof (collectively, the "Securities"), [IF APPLICABLE,
INSERT -- and the aggregate principal amount of the Securities to be issued
under such series is limited to $______ (except for Securities authenticated and
delivered upon transfer of, or in exchange for, or in lieu of other
Securities).] All terms used in this Security which are defined in the Indenture
shall have the meanings assigned to them in the Indenture.

If an Event of Default, as defined in the Indenture, shall occur and be
continuing, the principal of the Securities of this series may be declared due
and payable in the manner and with the effect provided in the Indenture.

[IF APPLICABLE, INSERT -- The Securities may not be redeemed prior to the Stated
Maturity Date.]

[IF APPLICABLE, INSERT -- The Securities are subject to redemption [ (l) (IF
APPLICABLE, INSERT -- on _________ in any year commencing with the year ____ and
ending with the year ____ through operation of the sinking fund for this series
at a Redemption Price equal to 100% of the principal amount, and (2) ] [IF
APPLICABLE, INSERT -- at any time [on or after ___________], as a whole or in
part, at the election of the Company, at the following Redemption Prices
(expressed as percentages of the principal amount):

 If redeemed on or before _______, __% and if redeemed during the 12-month
period beginning _______ of the years indicated at the Redemption Prices
indicated below.

  YEAR           REDEMPTION PRICE          YEAR              REDEMPTION PRICE
  ----           ----------------          ----              ----------------

                                      A-5


<PAGE>   97


and thereafter at a Redemption Price equal to __% of the principal amount,
together in the case of any such redemption [IF APPLICABLE, INSERT -- (whether
through operation of the sinking fund or otherwise)] with accrued interest to
the Redemption Date; PROVIDED, HOWEVER, that installments of interest on this
Security whose Stated Maturity is on or prior to such Redemption Date will be
payable to the Holder of this Security, or one or more Predecessor Securities,
of record at the close of business on the relevant Record Dates referred to on
the face hereof, all as provided in the Indenture.]

           [IF APPLICABLE, INSERT -- The Securities are subject to redemption
(1) on _______ in any year commencing with the year ____ and ending with the
year ____ through operation of the sinking fund for this series at the
Redemption Prices for redemption through operation of the sinking fund
(expressed as percentages of the principal amount) set forth in the table below,
and (2) at any time [on or after _______], as a whole or in part, at the
election of the Company, at the Redemption Prices for redemption otherwise than
through operation of the sinking fund (expressed as percentages of the principal
amount) set forth in the table below: If redeemed during the 12-month period
beginning ________ of the years indicated,

                REDEMPTION PRICE FOR                      REDEMPTION PRICE FOR
                 REDEMPTION THROUGH                       REDEMPTION OTHERWISE
                  OPERATION OF THE                       THAN THROUGH OPERATION
   YEAR             SINKING FUND                           OF THE SINKING FUND
   ----         --------------------                     ----------------------

and thereafter at a Redemption Price equal to ____% of the principal amount,
together in the case of any such redemption (whether through operation of the
sinking fund or otherwise) with accrued interest to the Redemption Date;
PROVIDED, HOWEVER, that installments of interest on this Security whose Stated
Maturity is on or prior to such Redemption Date will be payable to the Holder of
this Security, or one or more Predecessor Securities, of record at the close of
business on the relevant Record Dates referred to on the face hereof, all as
provided in the Indenture.]

           [IF APPLICABLE, INSERT -- Notwithstanding the foregoing, the Company
may not, prior to _______, redeem any Securities as contemplated by [Clause (2)
of] the preceding paragraph as a part of, or in anticipation of, any refunding
operation by the application, directly or indirectly, of moneys borrowed having
an interest cost to the Company (calculated in accordance with generally
accepted financial practice) of less than __% per annum.]

           [IF APPLICABLE, INSERT -- The sinking fund for the Securities
provides for the redemption on _______ in each year, beginning with the year
____ and ending with the year ____, of [not less than] $_______] [("mandatory
sinking fund") and not more than $_______] aggregate principal amount of the
Securities. [The Securities acquired or redeemed by the Company otherwise than
through [mandatory] sinking fund payments may be credited against subsequent


                                      A-6


<PAGE>   98


[mandatory] sinking fund payments otherwise required to be made in the [DESCRIBE
ORDER] order in which they become due.]]

           Notice of redemption will be given by mail to Holders of Securities,
not less than 30 nor more than 60 days prior to the Redemption Date, all as
provided in the Indenture.

           In the event of redemption of this Security in part only, a new
Security or Securities for the unredeemed portion hereof shall be issued in the
name of the Holder hereof upon the cancellation hereof.

           The Indenture permits, with certain exceptions as therein provided,
the amendment thereof and the modification of the rights and obligations of the
Company and the rights of the Holders of the Securities under the Indenture at
any time by the Company and the Trustee with the consent of the Holders of not
less than a majority of the aggregate principal amount of all Securities issued
under the Indenture at the time Outstanding and affected thereby. The Indenture
also contains provisions permitting the Holders of not less than a majority of
the aggregate principal amount of the Outstanding Securities, on behalf of the
Holders of all such Securities, to waive compliance by the Company with certain
provisions of the Indenture. Furthermore, provisions in the Indenture permit the
Holders of not less than a majority of the aggregate principal amount, in
certain instances, of the Outstanding Securities of any series to waive, on
behalf of all of the Holders of Securities of such series, certain past defaults
under the Indenture and their consequences. Any such consent or waiver by the
Holder of this Security shall be conclusive and binding upon such Holder and
upon all future Holders of this Security and other Securities issued upon the
registration of transfer hereof or in exchange herefor or in lieu hereof,
whether or not notation of such consent or waiver is made upon this Security.

           No reference herein to the Indenture and no provision of this
Security or of the Indenture shall alter or impair the obligation of the
Company, which is absolute and unconditional, to pay the principal of (and
premium or Make-Whole Amount, if any) and interest on this Security at the
times, places and rate, and in the coin or currency, herein prescribed.

           As provided in the Indenture and subject to certain limitations
therein [and herein] set forth, the transfer of this Security is registrable in
the Security Register of the Company upon surrender of this Security for
registration of transfer at the office or agency of the Company in any place
where the principal of (and premium or Make-Whole Amount, if any) and interest
on this Security are payable, duly endorsed by, or accompanied by a written
instrument of transfer in form satisfactory to the Company and the Security
Registrar duly executed by, the Holder hereof or by his attorney duly authorized
in writing, and thereupon one or more new Securities, of authorized
denominations and for the same aggregate principal amount, will be issued to the
designated transferee or transferees.


                                      A-7


<PAGE>   99


           As provided in the Indenture and subject to certain limitations
therein [and herein] set forth, this Security is exchangeable for a like
aggregate principal amount of Securities of different authorized denominations
but otherwise having the same terms and conditions, as requested by the Holder
hereof surrendering the same.

           The Securities of this series are issuable only in registered form
[without coupons] in denominations of $_______ and any integral multiple
thereof.

           No service charge shall be made for any such registration of transfer
or exchange, but the Company may require payment of a sum sufficient to cover
any tax or other governmental charge payable in connection therewith.

           Prior to due presentment of this Security for registration of
transfer, the Company, the Trustee and any agent of the Company or the Trustee
may treat the Person in whose name this Security is registered as the owner
hereof for all purposes, whether or not this Security be overdue, and neither
the Company, the Trustee nor any such agent shall be affected by notice to the
contrary.

           No recourse shall be had for the payment of the principal of or
premium or Make-Whole Amount, if any, or the interest on this Security, or for
any claim based hereon, or otherwise in respect hereof, or based on or in
respect of the Indenture or any indenture supplemental thereto, against any
past, present or future stockholder, employee, officer or director, as such, of
the Company or of any successor, either directly or through the Company or any
successor, whether by virtue of any constitution, statute or rule of law or by
the enforcement of any assessment or penalty or otherwise, all such liability
being, by the acceptance hereof and as part of the consideration for the issue
hereof, expressly waived and released.

           The Indenture and the Securities shall be governed by and construed
in accordance with the laws of [the State of New York] applicable to agreements
made and to be performed entirely in such State.


                                      A-8


<PAGE>   100



                                    EXHIBIT B

                             FORMS OF CERTIFICATION

                                   EXHIBIT B-1

               FORM OF CERTIFICATE TO BE GIVEN BY PERSON ENTITLED
                TO RECEIVE BEARER SECURITY OR TO OBTAIN INTEREST
                       PAYABLE PRIOR TO THE EXCHANGE DATE

                                   CERTIFICATE

     [Insert title or sufficient description of Securities to be delivered]

     This is to certify that, as of the date hereof, and except as set forth
below, the above-captioned Securities held by you for our account (i) are owned
by person(s) that are not citizens or residents of the United States, domestic
partnerships, domestic corporations or any estate or trust the income of which
is subject to United States Federal income taxation regardless of its source
("United States person(s)"), (ii) are owned by United States person(s) that are
(a) foreign branches of United States financial institutions (financial
institutions, as defined in United States Treasury Regulations Section
2.165-12(c)(1)(v) are herein referred to as "financial institutions") purchasing
for their own account or for resale, or (b) United States person(s) who acquired
the Securities through foreign branches of United States financial institutions
and who hold the Securities through such United States financial institutions on
the date hereof (and in either case (a) or (b), each such United States
financial institution hereby agrees, on its own behalf or through its agent,
that you may advise Wyman-Gordon Company or its agent that such financial
institution will comply with the requirements of Section 165(j)(3)(A), (B) or
(C) of the United States Internal Revenue Code of 1986, as amended, and the
regulations thereunder), or (iii) are owned by United States or foreign
financial institution(s) for purposes of resale during the restricted period (as
defined in United States Treasury Regulations Section 1.163-5(c)(2)(i)(D)(7)),
and, in addition, if the owner is a United States or foreign financial
institution described in clause (iii) above (whether or not also described in
clause (i) or (ii)), this is to further certify that such financial institution
has not acquired the Securities for purposes of resale directly or indirectly to
a United States person or to a person within the United States or its
possessions.

     As used herein, "United States" means the United States of America
(including the States and the District of Columbia); and its "possessions"
include Puerto Rico, the U.S. Virgin Islands, Guam, American Samoa, Wake Island
and the Northern Mariana Islands.


                                      B-1


<PAGE>   101


     We undertake to advise you promptly by tested telex on or prior to the date
on which you intend to submit your certification relating to the above-captioned
Securities held by you for our account in accordance with your Operating
Procedures if any applicable statement herein is not correct on such date, and
in the absence of any such notification it may be assumed that this
certification applies as of such date.

     This certificate excepts and does not relate to [U.S.$] of such interest in
the above-captioned Securities in respect of which we are not able to certify
and as to which we understand an exchange for an interest in a permanent Global
Security or an exchange for and delivery of definitive Securities (or, if
relevant, collection of any interest) cannot be made until we do so certify.

     We understand that this certificate may be required in connection with
certain tax legislation in the United States. If administrative or legal
proceedings are commenced or threatened in connection with which this
certificate is or would be relevant, we irrevocably authorize you to produce
this certificate or a copy thereof to any interested party in such proceedings.

Dated: ________, ____

[To be dated no earlier than the 15th day prior to (i) the Exchange Date or (ii)
the relevant Interest Payment Date occurring prior to the Exchange Date, as
applicable]

                                           [Name of Person Making Certification]




                                           ------------------------------------
                                           (Authorized Signature)
                                           Name:
                                           Title:


                                      B-2


<PAGE>   102


                                   EXHIBIT B-2

                  FORM OF CERTIFICATE TO BE GIVEN BY EUROCLEAR
                AND CEDEL S.A. IN CONNECTION WITH THE EXCHANGE OF
                 A PORTION OF A TEMPORARY GLOBAL SECURITY OR TO
               OBTAIN INTEREST PAYABLE PRIOR TO THE EXCHANGE DATE

                                   CERTIFICATE

     [Insert title or sufficient description of Securities to be delivered]

     This is to certify that, based solely on written certifications that we
have received in writing, by tested telex or by electronic transmission from
each of the persons appearing in our records as persons entitled to a portion of
the principal amount set forth below (our "Member Organizations") substantially
in the form attached hereto, as of the date hereof, [U.S.$] principal amount of
the above-captioned Securities (i) is owned by person(s) that are not citizens
or residents of the United States, domestic partnerships, domestic corporations
or any estate or trust the income of which is subject to United States Federal
income taxation regardless of its source ("United States person(s)"), (ii) is
owned by United States person(s) that are (a) foreign branches of United States
financial institutions (financial institutions, as defined in U.S. Treasury
Regulations Section 1.165-12(c)(1)(v) are herein referred to as "financial
institutions") purchasing for their own account or for resale, or (b) United
States person(s) who acquired the Securities through foreign branches of United
States financial institutions and who hold the Securities through such United
States financial institutions on the date hereof (and in either case (a) or (b),
each such financial institution has agreed, on its own behalf or through its
agent, that we may advise Wyman-Gordon Company or its agent that such financial
institution will comply with the requirements of Section 165(j)(3)(A), (B) or
(C) of the Internal Revenue Code of 1986, as amended, and the regulations
thereunder), or (iii) is owned by United States or foreign financial
institution(s) for purposes of resale during the restricted period (as defined
in United States Treasury Regulations Section 1.163-5(c)(2)(i)(D)(7)), and, to
the further effect, that financial institutions described in clause (iii) above
(whether or not also described in clause (i) or (ii)) have certified that they
have not acquired the Securities for purposes of resale directly or indirectly
to a United States person or to a person within the United States or its
possessions.

     As used herein, "United States" means the United States of America
(including the States and the District of Columbia); and its "Possessions"
include Puerto Rico, the U.S. Virgin Islands, Guam, American Samoa, Wake Island
and the Northern Mariana Islands.

     We further certify that (i) we are not making available herewith for
exchange (or, if relevant, collection of any interest) any portion of the
temporary Global Security representing the above-captioned Securities excepted
in the above-referenced certificates of Member 


                                      B-3


<PAGE>   103


Organizations and (ii) as of the date hereof we have not received any
notification from any of our Member Organizations to the effect that the
statements made by such Member Organizations with respect to any portion of the
part submitted herewith for exchange (or, if relevant, collection of any
interest) are no longer true and cannot be relied upon as of the date hereof.

     We understand that this certification is required in connection with
certain tax legislation in the United States. If administrative or legal
proceedings are commenced or threatened in connection with which this
certificate is or would be relevant, we irrevocably authorize you to produce
this certificate or a copy thereof to any interested party in such proceedings.

Dated: _______ ____

[To be dated no earlier than the Exchange Date or the relevant Interest Payment
Date occurring prior to the Exchange Date, as applicable]

                                 [Morgan Guaranty Trust Company of New  York, 
                                 Brussels Office,] as Operator of the Euroclear 
                                 System [CEDEL S.A.]

                                 By:
                                    -----------------------------------------










                                      B-4