This document appears to be an insurance endorsement form, specifically related to liability insurance for International Business Machines Corporation (IBM). The form is dated December 31, 1970, and the policy number is 52-515-000. The endorsement modifies the insurance coverage as specified by the policy, which includes comprehensive general liability insurance, completed operations and products liability insurance, manufacturers' and contractors' liability insurance, owners', landlords', and highway liability insurance, special protective and public works liability insurance, and storekeeper's insurance.

The endorsement is issued by Zurich Insurance Company and American Insurance Company. The form also includes a section for exclusions, specifically addressing contamination or pollution, bodily injury, property damage, and the discharge of sewage, gases, or other pollutants. It is noted that these exclusions do not apply if such a discharge occurs as a result of accident.

The document is signed by an authorized representative of Zurich Insurance Company.