# Northbrook Insurance Company
Northbrook, Illinois

## Endorsement

**Named Insured:** International Business Machine Corp.
**Policy No.:** 63-003-053
**Endorsement No.:** 1

It is agreed that such insurance as this policy affords to the Named Insured as shown in Item 1 of the Declarations, applies also to the Additional Named Insured(s) named below, subject to the following provisions:

1. The Named Insured as shown in Item 1 of the Declarations, is authorized to act for such Additional Named Insured(s) in all matters pertaining to this insurance, including receipt of notice of cancellation; and
2. Return premium, if any shall be paid to the Named Insured as shown in Item 1 of the Declarations and;
3. The Named Insured as shown in Item 1 of the Declarations, shall pay the premium for the insurance afforded the additional Named Insured(s); provided, that in the event of bankruptcy, or insolvency of the Named Insured as shown in Item 1 of the Declarations, each additional Named Insured shall be responsible for and shall pay to the company the premium for the insurance afforded such additional Named Insured.
4. The insurance applies with respect to the business operations of the additional Named Insured(s) in the state to which this policy applies.
5. The Named Insured as shown in Item 1 of the Declarations, declares that all firms named in the policy as additional Named Insureds or as additional Insureds are owned or financially controlled by the same interests.
6. It is further understood and agreed that the addition of one or more additional Named Insured shall not operate to increase the company's limits of liability.

**NAMES OF ADDITIONAL NAMED INSUREDS**

IBM World Trade Corporation
IBM World Trade Corporation - Canada
Science Research Associates

This endorsement to take effect on the 21st day of No. 1977 All other terms and conditions remain unchanged.

Countersigned: May 20, 1977

Authorized Representative