# Endorsement

**Northbrook Excess and Surplus Insurance Company**
**Northbrook, Illinois**

**Endorsement**

**International Business Machines Corporation**

**Date:** 1 July 1979
**Endorsement No.:** 4

In consideration of the premium charged, it is agreed that Item 1. "Named Insured" of the Declarations is amended to read as follows:

International Business Machines Corporation, I.B.M. World Trade Corporation 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 identify of its officers, directors or stockholders and any employee association thereof.

It is further agreed that the joint venture known as 425 Market Street Associates is also included but only as respects the interest of International Business Machines Corporation.

This endorsement to take effect on the 21st day of May 1979 unchanged.
All other terms and conditions remain unchanged.

**Signature Date:** May 14, 1979
**Authorized Representative:**