Bulgaria
Viser nå: Bulgaria - Postskatt-frimerker (1925 - 1950) - 22 frimerker.
1. September VM: Ingen Perforering: 11½
1. May VM: Ingen Perforering: 11½
1. June VM: Ingen Perforering: 11½
1. May VM: Ingen Perforering: 11½
1. May VM: Ingen Perforering: 11½
1. June VM: Ingen Perforering: 11½
1. September VM: Ingen Perforering: 11½
1. July VM: Ingen Perforering: 11½
9. February VM: 1 Perforering: 10¾ x 11½
15. October VM: Ingen Perforering: 13
1. October VM: Ingen Perforering: 13