**Document Title:**

This document appears to be an insurance policy endorsement issued by Johnson & Higgins, specifically for Zurich Insurance Company and American Guarantee and Liability Insurance Company. The document is related to the International Business Machine Corporation (IBM).

**Key Information:**

- **Policy Number:** 89-06-923
- **Effective Date of Policy (Eff. Date of Pol):** 5-21-79
- **Effective Date of End (Eff. Date of End):** 5-21-79
- **Agency No.:** 50-515-810
- **Additional Premium:** $0
- **Return Premium:** $0

**Named Insured:**
- INTERNATIONAL BUSINESS MACHINE CORP.

**Endorsement Details:**
- This endorsement is issued by the company designated below, which is the insurer under the above-numbered policy issued to the Named Insured.
- It forms a part of said policy as of the effective date hereof, at the hour stated in the policy declarations.

**Cancellation or Material Change Notice:**
- In the event of cancellation or material change in policy coverage, thirty (30) days prior written notice, as set forth in Section 10-302 of the Defense Acquisition Regulation, will be given to the cognizant Defense Logistics Agency, DCAS Office, 60 Hudson Street, New York, 10013.

**Insurer Information:**
- JOHNSON & HIGGINS
- BJJ:TM 3-27-60
- CASUALTY DEPT.

**Counterparty Information:**
- ZURICH INSURANCE COMPANY
- AMERICAN GUARANTEE AND LIABILITY INSURANCE COMPANY

**Counter-signed:**
- AUTHORIZED REPRESENTATIVE

**Note:**
- This endorsement is only valid for general liability, automobile, burglary, and glass coverage, and compensation policies.

**Document Identifier:**
- MM 009617

**Image Source:**
- The document appears to be a scanned copy with some wear and tear visible on the edges.