This endorsement modifies such insurance as is afforded by the provisions of the policy relating to the following designated insurance:

- COMPREHENSIVE GENERAL LIABILITY INSURANCE
- COMPREHENSIVE AUTOMOBILE LIABILITY INSURANCE

SCHEDULE OF UNDERLYING INSURANCE (CONTINUED)

| COMPANY | COVERAGE | LIMITS OF LIABILITY |
|---------|----------|---------------------|
| St. Paul Mercury | Automobile Liability (Cars located in South Korea) | Bodily Injury $100,000. Property Damage $1,000,000. |
| Great American | Automobile Liability (Cars located in Guam) | $1,000,000. Combined Single Limit, Bodily Injury and Property Damage |
| Fireman's Fund | Automobile Liability (Cars located in South Vietnam) | Bodily Injury $100,000. Property Damage $1,000,000. |
| Zurich Ins. Co. | Public Liability (Laboratory In Switzerland) | Bodily Injury $58,005. $16,010. Property Damage $23,202. |
| I.B.M. WORLD TRADE CORP. | Comprehensive General Liability Including Automobile Liability | Bodily Injury $500,000. each person $1,000,000. each occurrence 1,000,000. aggregate products Property Damage $100,000.each occurrence 100,000.aggregate operation 100,000.aggregate protective 100,000.aggregate products 100,000.aggregate contractual |

This endorsement forms a part of and is for attachment to the following described policy issued by the CONTINENTAL NATIONAL AMERICAN GROUP company designated therein, takes effect on the effective date of said policy, unless another effective date is shown below, at the hour stated in said policy and expires concurrently with said policy.

| Must Be Completed | Complete Only When This Endorsement Is Not Prepared with the Policy Or Is Not to be Effective with the Policy |
|-------------------|------------------------------------------------------------|
| ENDT. NO. 2       | POLICY NO. RDU 9433884                                     |
| ISSUED TO         | EFFECTIVE DATE OF THIS ENDORSEMENT                        |

CNA CONTINENTAL NATIONAL AMERICAN GROUP
Blank Endorsement G-31821-A
Page 2(Continued)
Countersigned by _______ Licensed Resident Agent