Bulgaria
| Country: | Bulgaria |
| Type: | Postage stamps |
| Series: | Preservation of the Architectural Heritage in Europe |
| Nominal: | 43 ст |
| Year: | 1978 |
| Size: | 29 x 39 mm |
| Perforation: | comb 13 x 13½ |
Preservation of the Architectural Heritage in Europe
 Tourist Home, Plovdiv |  Tower of the Prince, Rila Monastery |