Stamp Finder ↺ Scott or Y & T ? International Youth Year (in 1985) 1986-1996 Regular and Airmail Stamps (May 20, 1986) Sc 830 / YT 843 Sc 831 / YT 844 Sc 832 / YT 845 Sc 833 / YT PA653 Sc 834 / YT PA654 Sc 835 / YT PA655 Souvenir Sheet (May 20, 1986) Sc 836 / YT BF47 Surcharge (1996) Sc 873 / YT PA671A