prohibited, we will indemnify you, in the United States, for the reasonable cost of any such investigation, settlement or defense, in currency of the United States at the rate of exchange prevailing on the date of our payment to you as published in the Wall Street Journal.

(a) The amount we will pay for damages is limited as described in LIMITS OF INSURANCE (SECTION III); and

(b) Our right to defend ends when we have used up the applicable limit of insurance in the payment of judgments or settlements under Coverage A or B or medical expenses under Coverage C.

No other obligation or liability to pay sums or perform acts or services is covered unless explicitly provided for under SUPPLEMENTARY PAYMENTS - COVERAGES A AND B.

With respect to those "suits" or claims instituted in courts outside the United States of America (including its territories and possessions) Section IV - Commercial General Liability Conditions, paragraph 4., Other Insurance, b., Excess Insurance is amended by the addition of the following subparagraph (4):

That is valid and collectible insurance available on policy forms issued in countries other than the United States of America covering a loss also covered hereunder.

With respect to those "suits" or claims instituted in courts outside the United States of America (including its territories and possessions) Section IV - Commercial General Liability Conditions, is amended by the addition of the following condition, Difference In Conditions:

If policy number 80-0263515 issued to you by The Insurance Company of the State of Pennsylvania provides less in coverage than this policy ("coverage difference"), this policy will provide coverage for any "coverage difference" loss subject to the terms, limitations and conditions of this policy.

All other terms and conditions remain the same.

WE ARE NOT AN ADMITTED OR AUTHORIZED INSURER OUTSIDE THE UNITED STATES OF AMERICA (INCLUDING ITS TERRITORIES AND POSSESSIONS) OR CANADA. THEREFORE, WE ASSUME NO RESPONSIBILITY FOR THE FURNISHING OF CERTIFICATES OF INSURANCE OR EVIDENCE OF INSURANCE OR BONDS, OR