Explorateur de timbres ↺ Scott or Y & T ? Bicentenary of Port-au-Prince 1949-1950 Recess printed by the American Bank Note Company, New York. Line perf. 12. Postal Tax Stamps (September 20, 1949) Sc RA9 / YT 324 Sc RA10 / YT 325 Sc RA11 / YT 326 Sc RA12 / YT 327 Sc RA13 / YT 328 Sc RA14 / YT 329 Sc RA15 / YT 330 Sc RA16 / YT 331 75th Anniversary of the UPU 1949 (October 4, 1950) Sc 385 / YT 333 Sc 386 / YT 334 Sc 387 / YT 335 Sc 388 / YT 336