Sheets of Bulgaria, 1937
| Issuer | Date | Desc | State | ||
| - |  |
Bulgaria | 10/3/1937 | Tsar Boris III accession 19th, sheet of 1 type | |
| - | no image | Bulgaria | 10/3/1937 | empty sheet (#5889) | incomplete |
| Issuer | Date | Desc | State | ||
| - | |
Bulgaria | 10/3/1937 | Tsar Boris III accession 19th, sheet of 1 type | |
| - | no image | Bulgaria | 10/3/1937 | empty sheet (#5889) | incomplete |