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| 1918 year. | Detailed full catalog for 1919 year. | 1920 year. |
| BC number(s): 132, 133, "Regular - National Assembly" - two postage stamps. |
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| BC number(s): 134, 135, 136, 137, 138, 139, 140, 141, "Regular - one year since the accession of Tsar Boris III to the Bulgarian throne." - eight postage stamps. |
| 1918 year. | Detailed full catalog for 1919 year. | 1920 year. |
