1956 COUPON REPONSE INTERNATIONAL POSTAGE COUPONS POST OFFICE POST USA VINTAGE | eBay
File:German International Reply Coupon, 2022-2026, Front.png - Wikipedia
I received a Universal Postal Union coupon from a very nice French person who collects film festival memorabilia and requested I send them some postcards from our film festival. I didn't know
Brazil 1919 International Reply Coupon IRC Post Office 98908 | Central & South America - Brazil, Stamp / HipStamp
USA 15c International Reply Coupon IRC Post Office 98932 | United States, Stamp / HipStamp
Unclassified - International Reply Coupon IRC 11 cents Sc IRC14
USA 15c International Reply Coupon IRC Post Office 98932 | United States, Stamp / HipStamp
Beautiful coins | moneymuseum.com
Palestine - PALESTINE Lo14 25 MILS International Reply Coupon Reponse Antwortschein IAS IRC o HAIFA HADAR HACARMEL 5.2.46
USA 1946 International Reply Coupon IRC US Post Office 9c Value Illinois 95616 | Worldwide - Other, Stamp / HipStamp