These sheets commemorate these great Russian achievements in space:

- Spoutnik 1 (1957)
- Laika and Spoutnik 2 (1957)
- Youri Gagarine and Vostok 1 (1961)
- Valentina Tereshkova and Vostok 6 (1963)

- Strelka, Belka and Spoutnik 5 (1960)
- Alexsey Leonov and Voshkod 2 (1965)
- Luna 9 (1966)
- Vladimir Komarov and Soyuz 1 (1967)

The stamps are in perfect MINT NEVER HINGED condition.

Large image.

More space on stamps here.