Bulgaria
Stamp from block
| Country: | Bulgaria |
| Type: | Postage stamps |
| Series: | 25 Years manned Space Flight |
| Nominal: | 50 ст |
| Year: | 1986 |
| Perforation: | comb 13¼ x 13 |
25 Years manned Space Flight
 Vostok 1 |  Yuri Gagarin |