Bulgaria
| Country: | Bulgaria |
| Type: | Postage stamps |
| Series: | 50th Anniversary of September Uprising |
| Nominal: | 13 ст |
| Year: | 1973 |
| Perforation: | comb 12½ |
| Mintage: | 150,000 |
50th Anniversary of September Uprising
 Revolutionaries marching with Flag 0.1$ |  Revolutionaries on Wagons |  Revolutionaries with Flag |  George Dimitrov and Vassil Kolarov. 1.3$ |