Stamp Finder ↺ Scott or Y & T ? EXPO ‘70 International Exposition in Osaka (in 1970) 1972-1976 Regular and Airmail Stamps (October 27, 1972) Sc 660 / YT 711 Sc 661 / YT 712 Sc C387 / YT PA492 Sc C388 / YT PA493 Sc C389 / YT PA494 Sc C390 / YT PA495 Surcharge (1976) Sc C447 / YT PA552A Sc C447A / YT PA565