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                                                                     EXHIBIT 4.6

                          FIRST SUPPLEMENTAL INDENTURE

                  This First Supplemental Indenture, dated as of August 1, 2003
(this "Supplemental Indenture"), between JLG OmniQuip, Inc., a Delaware
corporation (the "New Note Guarantor"), JLG Industries, Inc., a Pennsylvania
corporation (together with its successors and assigns, the "Company"), each
other Note Guarantor under the Indenture referred to below, and The Bank of New
York, as Trustee under the Indenture referred to below.

                              W I T N E S S E T H:

                  WHEREAS, the Company and the Trustee have heretofore executed
and delivered an Indenture, dated as of May 5, 2003 (as amended, supplemented,
waived or otherwise modified, the "Indenture"), providing for the issuance of
8-1/4 % Senior Notes Due 2008 of the Company (the "Notes");

                  WHEREAS, pursuant to Section 9.5 of the Indenture, the Company
is required to cause each Material Domestic Subsidiary created or acquired by
the Company to execute and deliver to the Trustee an Additional Note Guarantee
pursuant to which such Material Domestic Subsidiary will unconditionally
guarantee, jointly and severally with the other Note Guarantors, the Company's
full and prompt payment of the Obligations (as defined in the Indenture) in
respect of the Indenture and the Notes; and

                  WHEREAS, pursuant to Section 8.1 of the Indenture, the
Trustee, the Company and the existing Note Guarantors are authorized to execute
and deliver this Supplemental Indenture to amend or supplement the Indenture,
without the consent of any Holder;

                  NOW, THEREFORE, in consideration of the foregoing and for
other good and valuable consideration, the receipt of which is hereby
acknowledged, the New Note Guarantor, the Company, each other Note Guarantor and
the Trustee mutually covenant and agree for the equal and ratable benefit of the
Holders as follows:

                                    Article I

                                   Definitions

                  Section 1.1. Defined Terms. Unless otherwise defined in this
Supplemental Indenture, terms defined in the Indenture are used herein as
therein defined.

                                   Article II

                        Agreement to be Bound; Guarantee

                  Section 2.1. Agreement to be Bound. The New Note Guarantor
hereby becomes a party to the Indenture as a Note Guarantor and as such will
have all of the rights and be subject to all of the obligations and agreements
of a Note Guarantor under the Indenture. The New Note Guarantor hereby agrees to
be bound by all of the provisions of the Indenture applicable to a

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Note Guarantor and to perform all of the obligations and agreements of a Note
Guarantor under the Indenture.

                  Section 2.2. Guarantee. The New Note Guarantor hereby fully,
unconditionally and irrevocably guarantees, as primary obligor and not merely as
surety, jointly and severally with each other Note Guarantor, to each Holder of
the Notes and the Trustee, the full and punctual payment when due, whether at
maturity, by acceleration, by redemption or otherwise, of the Obligations, all
as more fully set forth in Article IX of the Indenture.

                                   Article III

                                 Miscellaneous

                  Section 3.1. Notices. Any notice or communication delivered to
the Company under the provisions of the Indenture shall constitute notice to the
New Note Guarantor.

                  Section 3.2. Parties. Nothing expressed or mentioned herein is
intended or shall be construed to give any Person, firm or corporation, other
than the Holders and the Trustee, any legal or equitable right, remedy or claim
under or in respect of this Supplemental Indenture, the Indenture or any
provision herein or therein contained.

                  Section 3.3. Governing Law. This Supplemental Indenture shall
be governed by the provisions set forth in Section 10.8 of the Indenture.

                  Section 3.4. Severability. In case any provision in this
Supplemental Indenture 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 and such provision shall be ineffective only to the
extent of such invalidity, illegality or unenforceability.

                  Section 3.5. Ratification of Indenture; Supplemental Indenture
Part of Indenture. Except as expressly amended hereby, the Indenture is in all
respects ratified and confirmed and all the terms, conditions and provisions
thereof shall remain in full force and effect. This Supplemental Indenture shall
form a part of the Indenture for all purposes, and every Holder heretofore or
hereafter authenticated and delivered shall be bound hereby. The Trustee makes
no representation or warranty as to the validity or sufficiency of this
Supplemental Indenture.

                  Section 3.6. Duplicate and Counterpart Originals. The parties
may sign any number of copies of this Supplemental Indenture. One signed copy is
enough to prove this Supplemental Indenture. This Supplemental Indenture may be
executed in any number of counterparts, each of which so executed shall be an
original, but all of them together represent the same agreement.

                  Section 3.7. Headings. The headings of the Articles and
Sections in this Supplemental Indenture have been inserted for convenience of
reference only, are not intended to be considered as a part hereof and shall not
modify or restrict any of the terms or provisions hereof.

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IN WITNESS WHEREOF, the parties hereto have caused this Supplemental Indenture
to be duly executed as of the date first above written.

                                        JLG INDUSTRIES, INC.

                                        By: /s/ Thomas D. Singer
                                            ----------------------------------
                                        Name: Thomas D. Singer
                                        Title: Senior Vice President/General
                                        Counsel

                                        JLG OMNIQUIP, INC.,
                                        as the New Note Guarantor

                                        By: /s/ Thomas D. Singer
                                            ----------------------------------
                                        Name: Thomas D. Singer
                                        Title: Vice President

                                        JLG EQUIPMENT SERVICES, INC.,
                                        as a Note Guarantor

                                        By: /s/ Thomas D. Singer
                                            ----------------------------------
                                        Name: Thomas D. Singer
                                        Title: Vice President

                                        JLG MANUFACTURING LLC.,
                                        as a Note Guarantor

                                        By: /s/ Thomas D. Singer
                                            ----------------------------------
                                        Name: Thomas D. Singer
                                        Title: Senior Vice President/General
                                        Counsel

                                        FULTON INTERNATIONAL, INC.,
                                        as a Note Guarantor

                                        By: /s/ Thomas D. Singer
                                            ----------------------------------
                                        Name: Thomas D. Singer
                                        Title: Vice President

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                                        GRADALL INDUSTRIES, INC.,
                                        as a Note Guarantor

                                        By: /s/ Thomas D. Singer
                                            ----------------------------------
                                        Name: Thomas D. Singer
                                        Title: Vice President

                                        THE GRADALL COMPANY,
                                        as a Note Guarantor

                                        By: /s/ Thomas D. Singer
                                            ----------------------------------
                                        Name: Thomas D. Singer
                                        Title: Vice President

                                        ACCESS FINANCIAL SOLUTIONS, INC.,
                                        as a Note Guarantor

                                        By: /s/ Thomas D. Singer
                                            ----------------------------------
                                        Name: Thomas D. Singer
                                        Title: Vice President

                                        THE BANK OF NEW YORK,
                                        as Trustee

                                        By: /s/ Joseph A. Lloret
                                            ----------------------------------
                                        Name: Joseph A. Lloret
                                        Title: Assistant Treasurer<PAGE>

GC               [GRAPHIC]

       GLADSTONE COMMERCIAL CORPORATION                  --------------------
                                                           CUSIP 376536 10 8
INCORPORATED UNDER THE LAWS OF THE STATE OF MARYLAND     --------------------

                                                            SEE REVERSE SIDE
                                                        FOR CERTAIN DEFINITIONS

THIS IS TO CERTIFY THAT

is the owner of

   FULLY PAID AND NON-ASSESSABLE SHARES OF THE PAR VALUE OF $.001 EACH OF THE
                COMMON STOCK OF GLADSTONE COMMERCIAL CORPORATION

transferable on the books of the Corporation in person or by duly authorized
attorney upon surrender of this Certificate properly endorsed. This Certificate
is not valid unless countersigned by the Transfer Agent and registered by the
Registrar.

  IN WITNESS WHEREOF; the said Corporation has caused this Certificate to be
endorsed by the facsimile signatures of its duly authorized officers and to be
sealed with the facsimile seal of the Corporation.

Dated

/s/ Harry Brill           [SEAL]           /s/ David Gladstone
Treasurer                                  Chairman and Chief Executive Officer

COUNTERSIGNED AND REGISTERED:
               THE BANK OF NEW YORK
                   (NEW YORK)           TRANSFER AGENT
BY                                      AND REGISTRAR.

                                        AUTHORIZED SIGNATURE

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      The Corporation will furnish without charge to each stockholder who so
requests a statement of the designations, powers, preferences and relative
participating, optional or other special rights of each class of stock or series
thereof of the Corporation and the qualifications, limitations or restrictions
of such preferences and/or rights. Such request may be made to the Corporation
or the Registrar and Transfer Agent.

      The following abbreviations, when used in the inscription on the face of
this certificate, shall be construed as though they were written out in full
according to applicable laws or regulations:

TEN COM - as tenants in common          UNIF GIFT MIN ACT-______Custodian_______
TEN ENT - as tenants by the entireties                    (Cust)         (Minor)
JT TEN  - as joint tenants with right              under Uniform Gifts to Minors
          of survivorship and not as               Act______________________
          tenants in common                                  (State)

    Additional abbreviations may also be used though not in the above list.

For Value Received,________________________hereby sell, assign and transfer unto

PLEASE INSERT SOCIAL SECURITY OR OTHER
   IDENTIFYING NUMBER OF ASSIGNEE
 ____________________________________
|                                    |
|                                    |
|____________________________________|

________________________________________________________________________________
 (PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS, INCLUDING ZIP CODE, OF ASSIGNEE)

________________________________________________________________________________

________________________________________________________________________________

__________________________________________________________________________Shares
of the capital stock represented by the within Certificate, and do hereby
irrevocably constitute and appoint

________________________________________________________________________Attorney
to transfer the said stock on the books of the within named Corporation with
full power of substitution in the premises.

Dated_________________________________

                                   X____________________________________________
                                                 (owner sign here)

                                   NOTICE:  THE SIGNATURE TO ASSIGNMENT MUST
                                            CORRESPOND WITH AS THIS THE NAME
                                            WRITTEN UPON THE FACE OF THE
                                            CERTIFICATE IN EVERY PARTICULAR,
                                            WITHOUT ALTERATION OR ENLARGEMENT OR
                                            ANY CHANGE WHATEVER.

SIGNATURE(S) GUARANTEED:

 ____________________________________

THE SIGNATURE(S) SHOULD BE AN
GUARANTOR INSTITUTION GUARANTEED BY
ELIGIBLE (BANKS, STOCKBROKERS, SAVINGS
AND LOAN ASSOCIATIONS AND CREDIT
UNIONS WITH MEMBERSHIP IN AN APPROVED
SIGNATURE GUARANTEE MEDALLION
PROGRAM), PURSUANT TO S.E.C. RULE
17Ad-15.

Signature guaranteed by:________________________________________________________

                        ________________________________________________________
                                                  Firm

                        ________________________________________________________
                                  City                            State

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