|
|
The numbering in brackets below the main one is taken from the Catalog of Bulgarian Postal Entities, Part II, covers with Tax Mark (1953-1961) by Bulphila Publishing House and the Michel Catalog. |
| 1938 year. | Detailed full catalog for 1939 year. | 1940 year. |
| 1938 year. | Detailed full catalog for 1939 year. | 1940 year. |
