COMORO ISLANDS (1976) USA Bicentennial*. Die proof in green of gold foil stamps. Scott Nos 171,173. These proofs were printed in Switzerland and bear the raised imprint "IMPRIMERIE DES TIMBRES POSTES - SUISSE."
AVAILABLE AT $50
18411
EA
COMORO ISLANDS (1976) USA Bicentennial*. Die proof in violet of gold foil stamps. Scott Nos 230,232. These proofs were printed in Switzerland and bear the raised imprint "IMPRIMERIE DES TIMBRES POSTES - SUISSE."