US International Reply Coupon 1978

United States · 1978 · 50 cents

A 1978 International Reply Coupon issued by the US Postal Service, featuring text detailing its purpose and the emblem of the Universal Postal Union.

International Reply Coupons allowed senders in one country to provide recipients in another country with a means to pay for return postage, facilitating international correspondence, particularly for hobbyists like radio amateurs.