# Document Content

**Endorsement 28 cancels & replaces Endorsement 27**

**Policy No:** 88-26-230  
**Eff Date of Pol:** 1-1-77  
**Eff Date of End:** 8-14-77  
**Agency No:** 50-515  
**Add'l Premium:** $ 1286  
**Return Premium:** $  

**Named Insured:** International Business Machines Corp.

This endorsement is issued by that company named below which is the insurer under the policy designated above issued to the Named Insured and forms part of said policy as of the effective date hereof, at the hour stated in the policy Declarations.

It is agreed that such insurance as is afforded by the policy is extended to include

**Science Research Associates**  
**Chicago, Ill.**  
**Premium Basis and Rates**

| Payroll | Rates | Premiums |
|---------|-------|----------|
| 5,184,000 | (s) .19205 | 996 |
|          | (e) .05600 | 290 |
|          |         | 1286 |

**P.R.: 384**

**Johnson & Higgins**  
**CC: ga 8/25/77**

**ZURICH INSURANCE COMPANY**
**AMERICAN GUARANTEE AND LIABILITY INSURANCE COMPANY**

**Consigned:** Victor Higro

**Authorized agent:** [Signature]
**Form 1046 REV. 1976**