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The numbering in brackets below the main one is taken from the Catalog of Bulgarian Postal Entities, Part I, Postcards (1879-2007) by Bulphila Publishing House and the Michel Catalog. |
| 1911 year. | Detailed full catalog for 1912 year. | 1913 year. |
| BC number(s): k19121 (PC 34), "Coming of age of Prince Boris" |
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| BC number(s): k19122 (PC 35), "Coming of age of Prince Boris" |
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| BC number(s): k19123 (PC 36), "25 years since the accession to the throne of Tsar Ferdinand. " |
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| BC number(s): k19124 (PC 37), "25 years since the accession to the throne of Tsar Ferdinand. " |
| 1911 year. | Detailed full catalog for 1912 year. | 1913 year. |
