# (REVISED) ENDORSEMENT #1

This endorsement, effective 12:01 A.M. May 21, 1980, forms a part of policy No. 991 03 10 issued to International Business Machine Corporation by National Union Fire Insurance Company of Pittsburgh, PA.

It is understood and agreed that Item 1 of the declarations, Named Insured, is hereby amended to read as follows:

International Business Machines Corporation, I.B.M. World Trade Corporation, IB! World Trade Europe/Middle East Africa Corporation and IB! World Trade Americas/Far East Corporation and Science Research Associates, Inc., and any other Subsidiary or Affiliated Corporation provided such other Subsidiary or affiliated Corporation warrants that it is under the same operative and financial control through the identity of its officers, directors or stockholders and any Employee Associations thereof.

It is also agreed that the following joint venture and/or partnerships are included as named insureds, but only as respects the interest of International Business Machines Corporation:

1) Market Street Associates of St. Louis
2) Discovision Associates
3) Satellite Business Systems
4) 425 Market Street Associates (San Francisco)
5) 2345 Grand Avenue Kansas City Condominium

AUTHORIZED REPRESENTATIVE