# ENDORSEMENT

**Date Issued:** 5/12/81  
**Endorsement No:** 5  
**Insured:** International Business Machines Corporation, Policy No (82)7922-31-24  
**Name of Company:** Federal Insurance Company  
**Effective Date:** 5/21/81  
**Producer:** Johnson & Higgins  

It is hereby understood and agreed that Item 1, Named Insured, is amended to include the following joint venture and/or partnership as respects the interest of I.B.M. only:

1. Market Street Associates of St. Louis  
2. Discovision Associates  
3. Satellite Business Systems  

All Other Terms and Conditions Remain Unchanged  

**Authorized Representative:** [Signature]