Explorateur de timbres ↺ Scott or Y & T ? Haitian Flag 1973-1976 Airmail Stamps (November 18, 1973) Sc C403 / YT PA518 Sc C404 / YT PA519 Sc C405 / YT PA521 Sc C406 / YT PA520 Centenary of the UPU 1974 (July 15, 1975) Sc C432 / YT PA541 Sc C433 / YT PA542 Surcharge (July 15, 1975) Sc C427 / YT — Sc C428 / YT — Surcharge (1976) Sc C441 / YT PA548 Sc C442 / YT PA566