Stamp Finder ↺ Scott or Y & T ? 500th Anniversary of the Arrival of Europeans in America 1986 Regular and Airmail Stamps (April 11, 1986) Sc 818 / YT 838 Sc 819 / YT 839 Sc 820 / YT 840 Sc 821 / YT PA647 Sc 822 / YT PA648 Sc 823 / YT PA649, BF46 Souvenir Sheet (April 11, 1986) 1986-04-11 souvenir sheet Surcharge (November 1996) Sc 883 / YT 862D