Sheets of Bulgaria, 1990
| Issuer | Date | Desc | State | ||
| - |  |
Bulgaria | 1/17/1990 | sheet of 6 types | all added |
| - |  |
Bulgaria | 3/26/1990 | empty sheet (#6252) | incomplete |
| - |  |
Bulgaria | 3/28/1990 | empty sheet (#6253) | incomplete |
| - |  |
Bulgaria | 4/6/1990 | empty sheet (#6245) | incomplete |
| - |  |
Bulgaria | 4/10/1990 | empty sheet (#6250) | incomplete |
| - |  |
Bulgaria | 5/25/1990 | empty sheet (#6246) | incomplete |
| - |  |
Bulgaria | 6/19/1990 | empty sheet (#6247) | incomplete |
| - |  |
Bulgaria | 7/13/1990 | empty sheet (#6251) | incomplete |
| - |  |
Bulgaria | 7/13/1990 | empty sheet (#6256) | incomplete |
| - | no image | Bulgaria | 8/8/1990 | empty sheet (#6248) | incomplete |
| - |  |
Bulgaria | 8/30/1990 | empty sheet (#6249) | incomplete |
| - |  |
Bulgaria | 10/16/1990 | empty sheet (#6254) | incomplete |
| - |  |
Bulgaria | 10/22/1990 | empty sheet (#6255) | incomplete |
| - |  |
Bulgaria | 10/22/1990 | empty sheet (#6257) | incomplete |