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                                                                  Exhibit 4(c)

THIS SECURITY IS A GLOBAL NOTE WITHIN THE MEANING OF THE INDENTURE HEREINAFTER
REFERRED TO AND IS REGISTERED IN THE NAME OF A DEPOSITARY OR A NOMINEE THEREOF.
THIS SECURITY IS EXCHANGEABLE FOR SECURITIES REGISTERED IN THE NAME OF A PERSON
OTHER THAN THE DEPOSITARY OR ITS NOMINEE ONLY IN THE LIMITED CIRCUMSTANCES
DESCRIBED IN THE INDENTURE AND, UNLESS AND UNTIL IT IS EXCHANGED IN WHOLE OR IN
PART FOR NOTES IN DEFINITIVE FORM, THIS SECURITY MAY NOT BE TRANSFERRED EXCEPT
AS A WHOLE BY THE DEPOSITARY TO A NOMINEE OF THE DEPOSITARY OR BY A NOMINEE OF
THE DEPOSITARY TO THE DEPOSITARY OR ANOTHER NOMINEE OF THE DEPOSITARY OR BY THE
DEPOSITARY OR ANY SUCH NOMINEE TO A SUCCESSOR DEPOSITARY OR A NOMINEE OF SUCH
SUCCESSOR DEPOSITARY.

UNLESS THIS SECURITY IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION ("DTC"), TO THE COMPANY (AS
DEFINED BELOW) OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT,
AND ANY SECURITY ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH OTHER
NAME AS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS
MADE TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS 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 INASMUCH AS THE REGISTERED OWNER
HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.

                                                 CUSIP NO.: 315405 AH 3

                                FERRO CORPORATION

                           7 1/8% Debentures due 2028

No. ___________                                                     $___________

              Ferro Corporation, a corporation duly organized and existing under
the laws of Ohio (herein called the "Company", which term includes any successor
Person under the Indenture hereinafter referred to), for value received, hereby
promises to pay to ___________________________, or registered assigns, the
principal sum of ________________________ Dollars ($_________) on April 1, 2028,
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 April 1 and October 1 in each year, commencing October 1, 1998, at the rate
of 7 1/8% per annum, until the principal hereof is paid or made available for
payment. 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
Person 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 March 15 or September 15 (whether or not a Business
Day), as the case may be, next preceding such Interest Payment Date. Any such
interest not so punctually paid or duly provided for will forthwith cease to be
payable to the Holder on such Regular Record Date and may either be paid to the
Person 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 be paid at any time in any other lawful manner not
inconsistent with the requirements of any securities

<PAGE>


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 said
Indenture.

              Payment of the principal of (and premium, if any) and any such
interest on this Security will be made at the office or agency of the Trustee
maintained for that purpose in New York, New York, Dallas, Texas or Cleveland,
Ohio, in such coin or currency of the United States of America as at the time of
payment is legal tender for payment of public and private debts; PROVIDED,
HOWEVER, that at the option of the Company payment of interest may be made by
check mailed to the address of the Person entitled thereto as such address shall
appear in the Security Register or by wire transfer or by transfer through the
Automated Clearing House mechanism to an account maintained by such Person with
a bank in the continental United States (so long as the Paying Agent has
received proper transfer instructions in writing at least five Business Days
prior to the Regular Record Date).

              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 referred to on the reverse hereof by manual signature, 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 corporate seal.

Dated:

                                                 FERRO CORPORATION

                                                 By:__________________________

Attest:

________________________________

                                      -2-

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Form of Reverse of Security.
----------------------------

              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 March 25, 1998 (herein called the
"Indenture"), between the Company and Chase Manhattan Trust Company, National
Association, as Trustee (herein called the "Trustee", which term includes any
successor trustee under the Indenture), 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 series designated on the face hereof, limited in aggregate principal
amount to $55,000,000.

              The Securities of this series are subject to redemption upon not
more than 60 or less than 30 days' notice by mail, at any time or from time to
time, in whole or in part, at the option of the Company on any date (a
"Redemption Date"), at a redemption price equal to the greater of (i) 100% of
the principal amount of the Securities to be redeemed, or (ii) the sum of the
present values of the remaining scheduled payments of principal and interest
thereon (exclusive of interest accrued to such Redemption Date) discounted to
such Redemption Date on a semiannual basis (assuming a 360-day year consisting
of twelve 30-day months) at the Treasury Rate plus 12.5 basis points, plus, in
either case, accrued and unpaid interest on the principal amount being redeemed
to such Redemption Date; provided that installments of interest on Securities
which are due and payable on an Interest Payment Date falling on or prior to the
relevant Redemption Date shall be payable to the holders of such Securities,
registered as such at the close of business on the relevant Regular Record Date,
according to the terms and the provisions of the Indenture.

              "Treasury Rate" means, with respect to any Redemption Date for the
Securities, (i) the yield, under the heading which represents the average for
the immediately preceding week, appearing in the most recently published
statistical release designated "H.15(519)" or any successor publication which is
published weekly by the Board of Governors of the Federal Reserve System and
which establishes yields on actively traded United States Treasury securities
adjusted to constant maturity under the caption "Treasury Constant Maturities,"
for the maturity corresponding to the Comparable Treasury Issue (if no maturity
is within three months before or after the Maturity Date, yields for the two
published maturities most closely corresponding to the Comparable Treasury Issue
shall be determined and the Treasury Rate shall be interpolated or extrapolated
from such yields on a straight line basis, rounding to the nearest month) or
(ii) if such release (or any successor release) is not published during the week
preceding the calculation date or does not contain such yields, the rate per
annum equal to the semi-annual equivalent yield to maturity of the Comparable
Treasury Issue, calculated using a price for the Comparable Treasury Issue (as
expressed as a percentage of its principal amount) equal to the Comparable
Treasury Price for such Redemption Date. The Treasury Rate shall be calculated
on the third Business Day preceding the Redemption Date.

              "Comparable Treasury Issue" means the United States security
selected by the 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 the Securities.

              "Independent Investment Banker" means Morgan Stanley & Co.
Incorporated or, if such firm is unwilling or unable to select the Comparable
Treasury Issue, an independent investment banking institution of national
standing appointed by the Trustee after consultation with the Company.

                                      -3-

<PAGE>

              "Comparable Treasury Price" means with respect to any Redemption
Date for the Securities (i) the average of five Reference Treasury Dealer
Quotations for such Redemption Date, after excluding the highest and lowest such
Reference Treasury Dealer Quotations, or (ii) if the Trustee is provided with
fewer than five such Reference Treasury Dealer Quotations, the average of all
such quotations.

              "Reference Treasury Dealer" means: (i) Morgan Stanley & Co.
Incorporated and its successor; provided, however, that if the foregoing shall
cease to be a primary U.S. Government securities dealer in New York City (a
"Primary Treasury Dealer"), the Company will substitute therefore another
Primary Treasury Dealer, and (ii) any other Primary Treasury Dealer selected by
the Independent Investment Banker after consultation with the Company.

              "Reference Treasury Dealer Quotations" means, with respect to each
Reference Treasury Dealer and any Redemption Date, the average, as determined by
the Trustee, 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. New York
City time, on the third Business Day preceding such Redemption Date.

              In the event of redemption of this Security in part only, a new
Security or Securities of this series and of like tenor for the unredeemed
portion hereof will 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 to be
effected under the Indenture at any time by the Company and the Trustee with the
consent of the Holders of a majority in principal amount of the Securities at
the time Outstanding to be affected. The Indenture also contains provisions
permitting the Holders of specified percentages in principal amount of the
Securities at the time Outstanding, on behalf of the Holders of all securities,
to waive compliance by the Company with certain provisions of the Indenture and
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 of any
Security issued upon the registration of transfer hereof or in exchange therefor
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 any
premium and interest on this Security at the times, place and rate, and in the
coin or currency, herein prescribed.

              As provided in the Indenture and subject to certain limitations
therein set forth, the transfer of this Security is registerable in the Security
Register, 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, 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 his
attorney duly authorized in writing, and thereupon one or more new Securities of
this series and of like tenor, of authorized denominations and for the same
aggregate principal amount, will be issued to the designated transferee or
transferees.

              The Securities of this series are issuable only in registered form
without coupons in denominations of $1000 and any integral multiple thereof.

                                      -4-
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As provided in the Indenture and subject to certain limitations therein set
forth, Securities of this series are exchangeable for a like aggregate
principal amount of Securities of this series and of like tenor of a different
authorized denomination, as requested by the Holder surrendering the same.

              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.

              This Security is a Book-Entry Security within the meaning of 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.

              All terms used in this Security which are defined in the Indenture
shall have the meanings assigned to them in the Indenture.

                                      -5-

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Form of Trustee's Certificate of Authenticity
---------------------------------------------

              This is one of the Securities of the Series designated herein and
referred to in the within-mentioned Indenture.


                                                CHASE MANHATTAN TRUST COMPANY,
                                                 NATIONAL ASSOCIATION


                                                By:____________________________

                                      -6-