Stamp Finder ↺ Scott or Y & T ? 21st Olympic Games in Montreal (in 1976) 1978 Regular and Airmail Stamps (September 4, 1978) Sc 713 / YT 760 Sc 714 / YT 761 Sc 715 / YT 762 Sc C469 / YT PA572 Sc C470 / YT PA573 Sc C471 / YT PA574