Sheets of Bulgaria, 2013
| Issuer | Date | Desc | State | ||
| - |  |
Bulgaria | 2/1/2013 | empty sheet (#6456) | incomplete |
| - |  |
Bulgaria | 3/5/2013 | empty sheet (#6457) | incomplete |
| - |  |
Bulgaria | 3/10/2013 | empty sheet (#6450) | incomplete |
| - |  |
Bulgaria | 3/29/2013 | empty sheet (#6451) | incomplete |
| - |  |
Bulgaria | 4/5/2013 | empty sheet (#6452) | incomplete |
| - |  |
Bulgaria | 4/12/2013 | empty sheet (#6458) | incomplete |
| - |  |
Bulgaria | 4/16/2013 | empty sheet (#6464) | incomplete |
| - |  |
Bulgaria | 4/23/2013 | empty sheet (#6453) | incomplete |
| - |  |
Bulgaria | 4/24/2013 | empty sheet (#6454) | incomplete |
| - |  |
Bulgaria | 4/24/2013 | empty sheet (#6455) | incomplete |
| - |  |
Bulgaria | 4/24/2013 | empty sheet (#6459) | incomplete |
| - |  |
Bulgaria | 4/24/2013 | empty sheet (#45281) | incomplete |
| - |  |
Bulgaria | 5/14/2013 | empty sheet (#6460) | incomplete |
| - |  |
Bulgaria | 5/22/2013 | empty sheet (#6461) | incomplete |
| - |  |
Bulgaria | 5/30/2013 | empty sheet (#6462) | incomplete |
| - |  |
Bulgaria | 6/12/2013 | empty sheet (#6463) | incomplete |
| - |  |
Bulgaria | 6/17/2013 | empty sheet (#6465) | incomplete |
| - |  |
Bulgaria | 8/15/2013 | empty sheet (#6466) | incomplete |
| - |  |
Bulgaria | 8/30/2013 | empty sheet (#6467) | incomplete |
| - |  |
Bulgaria | 10/26/2013 | Orchids 2013, sheet of 4 types | |
| - | no image | Bulgaria | 10/26/2013 | empty sheet (#83458) | incomplete |
| - | no image | Bulgaria | 10/26/2013 | empty sheet (#83459) | incomplete |
| - |  |
Bulgaria | 10/27/2013 | empty sheet (#59913) | incomplete |
| - | no image | Bulgaria | 11/22/2013 | empty sheet (#83460) | incomplete |