Bulgaria
| Country: | Bulgaria |
| Type: | Postage stamps |
| Series: | Olympic Congress - Varna 1973 |
| Nominal: | 13 ст |
| Year: | 1973 |
| Perforation: | comb 13 |
| Mintage: | 150,000 |
Olympic Congress - Varna 1973
 Game Scene |  Sun, Olympic Rings |  Emblem of Olympic Komitee 2.6$ |  Game Scene |