Sheets of Bulgaria, 1976
| Issuer | Date | Desc | State | ||
| - |  |
Bulgaria | 1/30/1976 | empty sheet (#5960) | incomplete |
| - |  |
Bulgaria | 3/1/1976 | empty sheet (#5961) | incomplete |
| - |  |
Bulgaria | 6/5/1976 | empty sheet (#5964) | incomplete |
| - |  |
Bulgaria | 6/5/1976 | empty sheet (#5965) | incomplete |
| - | no image | Bulgaria | 6/5/1976 | empty sheet (#5966) | incomplete |
| - |  |
Bulgaria | 6/26/1976 | empty sheet (#5962) | incomplete |
| - |  |
Bulgaria | 8/11/1976 | empty sheet (#5963) | incomplete |
| - |  |
Bulgaria | 9/6/1976 | empty sheet (#5959) | incomplete |
| - |  |
Bulgaria | 10/4/1976 | empty sheet (#5967) | incomplete |
| - |  |
Bulgaria | 12/1/1976 | empty sheet (#5969) | incomplete |
| - |  |
Bulgaria | 12/8/1976 | empty sheet (#5968) | incomplete |