1939-05-14 60th Anniv of Bulgarian P.O. Inscr (1879 1939)
- Year: 1939-05-14
- MI numbers: 358-359
- More information: perf. 13
- MI catalog quantity / copies: 358-2000000, 359-2000000
- SC numbers: 350-351
- LC numbers: 376-377
- Country: Bulgaria
Published by:
dido