FIRST DAY OF ISSUE  XVIIth CONGRESS, International Chamber of Commerce 8-cent Stamp Block, Honoring XVII Congresswith Illustration of World Peace through World Trade... "World Trade in Action" Issued at Washington, DC Apr 20, 1959. FDC U.S. 8-cent stamp honoring World Peace through World Trade. Block of 4 stamps. Postmarked Washington DC Apr 20, 1959 Please shop our ever expanding store! Be sure to add us to your favorites list! Thank you. Powered by Turbo Lister The free listing tool. List your items fast and easy and manage your active items.