Exhibit 10.2

AMENDMENT TO CONTRACT FOR PURCHASE OF REAL ESTATE

        THIS AMENDMENT TO CONTRACT FOR PURCHASE OF REAL ESTATE (this
“Amendment”) is made as of the 14th day of August, 2003 (the “Effective Date”)
by and between The Keller Manufacturing Company, Inc., an Indiana corporation
(“Seller”), and Structural Systems, Inc., a Maryland corporation (“Purchaser”).

RECITALS:

        A.        Purchaser and Seller are parties to a certain Contract for
Purchase of Real Estate made and entered into as of April 16, 2003 (the
“Contract”).

        B.        The Diligence Period under the Contract will expire on August
14, 2003.

        C.        Purchaser and Seller wish extend the Diligence Period for an
additional sixty (60) days, solely with respect to Purchaser’s Tests and Studies
regarding the environmental condition of the Real Estate.

        NOW, THEREFORE, in consideration of the foregoing premises and the
mutual covenants and agreements set forth below, Purchaser and Seller hereby
agree as follows:

1.        Paragraph 4 of the Contract is hereby amended to extend the Diligence
Period, solely as it relates to Purchaser’s Tests and Studies regarding the
environmental condition of the Real Estate, for an additional sixty (60) days,
such that Purchaser’s Diligence Period with respect to its Tests and Studies
regarding the environmental condition of the Real Estate shall expire on October
13, 2003. Purchaser acknowledges and agrees that, except for its Tests and
Studies regarding the environmental condition of the Real Estate, Purchaser has
completed and is satisfied with its due diligence regarding the Real Estate and
with the results of its Tests and Studies regarding the Real Estate.

2.        Purchaser acknowledges and agrees that it is satisfied with the
condition of title to the Real Estate as set forth on the Commitment and that,
pursuant to Paragraph 3 of the Contract, Purchaser has accepted the status of
title as reflect in the Commitment.

3.        Purchaser acknowledges and agrees that Seller has performed, in a
manner satisfactory to Purchaser, Seller’s obligations under Paragraph 6 of the
Contract and that Purchaser’s condition to Closing under Paragraph 6 of the
Contract has been satisfied.

4.        Paragraph 8 of the Contract is hereby amended to change the reference
in the seventh (7th) and eighth (8th) line thereof from “one hundred eighty
(180) days following the Effective Date” to “two hundred forty (240) days
following the Effective Date”.

5.        The recitals set forth above are hereby incorporated into this
Amendment by reference. Except as specifically amended or modified pursuant to
this Amendment, the terms of the Contract shall remain in full force and effect.
This Amendment may be executed in counterparts, each of which shall be deemed an
original and all of which, taken together, shall constitute one and the same
instrument. Facsimile signatures of the parties on this Amendment shall be
effective as original signatures. This Amendment shall not be effective until it
has been signed by both parties.

6.        Capitalized terms used but not otherwise defined in this Amendment
shall have the meanings set forth in the Contract.

[signatures begin on following page]

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        IN WITNESS WHEREOF, Purchaser and Seller have caused their duly
authorized representatives to execute this Amendment as of the Effective Date
set forth above.

  "PURCHASER"

Structural Systems, Inc.

By:  /s/ Bruce Gordon

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Printed:  Bruce Gordon

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Its:  

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  "SELLER"

The Keller Manufacturing Company, Inc.

By:  /s/ David Jenkins

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Printed:  David Jenkins

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Its:  Vice President Engineering

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