Bulgaria
| Country: | Bulgaria |
| Type: | Postage stamps |
| Series: | Universiade, Sofia (I) |
| Nominal: | 13 ст |
| Year: | 1977 |
| Perforation: | comb 13¼ x 13 |
| Mintage: | 800,000 |
Universiade, Sofia (I)
 Wrestling 1.2$ |  Running |  Basketball |  Women's Gymnastics |