Sheets of Bulgaria, 2006
| Issuer | Date | Desc | State | ||
| - |  |
Bulgaria | 2/10/2006 | empty sheet (#6408) | incomplete |
| - |  |
Bulgaria | 2/28/2006 | empty sheet (#6409) | incomplete |
| - |  |
Bulgaria | 3/28/2006 | empty sheet (#6410) | incomplete |
| - |  |
Bulgaria | 4/27/2006 | empty sheet (#6411) | incomplete |
| - |  |
Bulgaria | 5/4/2006 | empty sheet (#6412) | incomplete |
| - |  |
Bulgaria | 5/4/2006 | empty sheet (#6413) | incomplete |
| - |  |
Bulgaria | 5/9/2006 | empty sheet (#6406) | incomplete |
| - |  |
Bulgaria | 6/9/2006 | empty sheet (#6414) | incomplete |
| - |  |
Bulgaria | 7/28/2006 | empty sheet (#6407) | incomplete |
| - |  |
Bulgaria | 10/25/2006 | empty sheet (#6415) | incomplete |
| - |  |
Bulgaria | 11/17/2006 | empty sheet (#6416) | incomplete |
| - |  |
Bulgaria | 11/29/2006 | empty sheet (#6417) | incomplete |
| - |  |
Bulgaria | 12/27/2006 | empty sheet (#6418) | incomplete |
| - |  |
Bulgaria | 12/27/2006 | empty sheet (#6419) | incomplete |