Sheets of Bulgaria, 1978
| Issuer | Date | Desc | State | ||
| - |  |
Bulgaria | 1/30/1978 | empty sheet (#5980) | incomplete |
| - |  |
Bulgaria | 2/9/1978 | Danube Commission, empty sheet (#5978) | incomplete |
| - |  |
Bulgaria | 3/28/1978 | 100th Anniversary of Liberation from the Turks, sheet of 1 type | incomplete |
| - |  |
Bulgaria | 6/2/1978 | empty sheet (#5982) | incomplete |
| - |  |
Bulgaria | 8/17/1978 | empty sheet (#5983) | incomplete |
| - |  |
Bulgaria | 8/28/1978 | empty sheet (#5984) | incomplete |
| - |  |
Bulgaria | 9/1/1978 | empty sheet (#5985) | incomplete |
| - |  |
Bulgaria | 11/1/1978 | empty sheet (#5986) | incomplete |
| - | no image | Bulgaria | 11/1/1978 | empty sheet (#5987) | incomplete |
| - | no image | Bulgaria | 11/1/1978 | empty sheet (#5988) | incomplete |
| - |  |
Bulgaria | 11/5/1978 | empty sheet (#5989) | incomplete |
| - |  |
Bulgaria | 12/15/1978 | empty sheet (#5990) | incomplete |
| - |  |
Bulgaria | 12/31/1978 | empty sheet (#5979) | incomplete |
| - |  |
Bulgaria | 12/31/1978 | empty sheet (#5991) | incomplete |