Bulgaria
| Country: | Bulgaria |
| Type: | Postage stamps |
| Series: | Postage Due 1951 Issue |
| Nominal: | 1 лв |
| Year: | 1951 |
| Perforation: | line 11 |
| Mintage: | 500,000 |
Postage Due 1951 Issue
 Postage Due 1951 Issue |  Postage Due 1951 Issue 0.37$ |  Postage Due 1951 Issue |  Postage Due 1951 Issue |
 Postage Due 1951 Issue 0.26$ |