Viser nå: Bulgaria - Postfrimerker (1930 - 1939) - 10 frimerker.
13. July VM: Ingen Perforering: 11½
3. October VM: Ingen Design: К.Христов Perforering: 11½
3. October VM: Ingen Design: Ат.Апостолов Perforering: 11½
3. October VM: Ingen Design: Ат.Апостолов Perforering: Imperforated