Bulgaria
| Country: | Bulgaria |
| Type: | Postage stamps |
| Series: | 80th Anniversary of Sofia Zoo |
| Nominal: | 5 ст |
| Year: | 1968 |
| Size: | 31 x 41 mm |
| Perforation: | line 10½ |
| Mintage: | 400,000 |
80th Anniversary of Sofia Zoo
 Cinereous Vulture 0.1$ |  Black Crowned Crane 0.11$ |  Plains Zebra |  Leopard |
 Indian Rock Python 2$ |  Crocodile 2.1$ |