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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. |
| 1903 year. | Detailed full catalog for 1904 year. | 1905 year. |
| 1903 year. | Detailed full catalog for 1904 year. | 1905 year. |
