USSR
Acknowledged, but not listed by SG.
| Country: | USSR |
| Type: | Postal blocks |
| Series: | Interkosmos - Soviet-French Space Flight |
| Nominal: | 8*6 k |
| Year: | 1982 |
| Material: | coated |
| Perforation: | comb 12¼ x 12 |
| Mintage: | 12,500 |
Interkosmos - Soviet-French Space Flight
 Earth’s Magnetic Field and Auroral Displays |  Studying Gamma-ray Bursts |  Crew of "Soyuz-T6" on Salyut-6" |  Interkosmos - Soviet-French Space Flight 0.64$ |