**ENDORSEMENT NO. 4**

**NAME OF INSURED:** INTERNATIONAL BUSINESS MACHINES CORP.

**IT IS UNDERSTOOD AND AGREED THAT THIS POLICY IS AMENDED AS FOLLOWS:**

1) **THIS POLICY IS AMENDED TO FOLLOW ALL THE TERMS AND CONDITIONS OF POLICY #62018623 ISSUED BY CENTENNIAL INS. INCLUDING ALL RENEWALS AND REWRITES THEREOF.**

2) **ENDORSEMENT #3 "AIRCRAFT PRODUCTS HAZARD EXCLUSION AND GROUNDING" FIRST LINE PARAGRAPH 2 IS AMENDED TO READ "AIRCRAFT PRODUCTS" MEANS IN LIEU OF "AIRCRAFT PRODUCTS HAZARD" MEANS.**

3) **ENDORSEMENT #1 NAMED INSURED, IS AMENDED BY ADDING THE FOLLOWING PARAGRAPH.**

4) **IT IS ALSO AGREED THAT THE FOLLOWING JOINT VENTURES ARE INCLUDED AS NAMED INSURED BUT ONLY AS RESPECTS THE INTEREST OF INTERNATIONAL BUSINESS MACHINES CORP.**

   1. MARKET STREET ASSOCIATES OF ST. LOUIS
   2. DISCOVISION ASSOCIATES
   3. SATELLITE BUSINESS SYSTEMS
   4. 425 MARKET STREET ASSOCIATES (SAN FRANCISCO)
   5. 2345 GRAND AVE., KANSAS CITY CONDOMINIUM

**NOTHING HEREIN CONTAINED SHALL BE HELD TO VARY, ALTER, WAIVE OR CHANGE ANY OF THE TERMS, LIMITS OR CONDITIONS OF THE POLICY, EXCEPT AS HEREINABOVE SET FORTH.**

**THIS ENDORSEMENT IS EFFECTIVE MAY 21, 1980**

**ATTACHED TO AND FORMING PART OF POLICY NO. C E3451710 OF THE THE INSURANCE COMPANY OF THE STATE OF PENNSYLVANIA**

**AMERICAN INTERNATIONAL UNDERWRITERS**

JEL/VV