Bulgarie
Montre maintenant: Bulgarie - Timbres-Poste (1879 - 2024) - 1 Timbres-poste.
1969
Airmail - World Philatelic Exhibition - Sofia 69 - from May 31 to 8 June 1969
31. mars WM: Aucun Taille de la feuille: 1 Perforation: Imperforated