Salyut 6 Soyuz 31 Flown Space Cover signed by Soyuz 31 crew: Sigmund Jähn and Valery Bykovsky.

Excellent condition.

Authenticity guaranteed, the buyer will receive the letter of authenticity.

Valery Bykovsky (1934 – 2019) was a Soviet cosmonaut who flew on three space flights: Vostok 5, Soyuz 22, Soyuz 31. He was also backup for Vostok 3 and Soyuz 37 He flew Soyuz 31 mission to Salyut 6 space station with the East German Sigmund Jähn. It was launched on 26 August 1978. They joined two other cosmonauts V. Kovalyonok and A. Ivanchenkov on the space station that had arrived on Soyuz 29 . The four conducted biological experiments on themselves during their stay. Bykovsky and Jähn undocked from the station in the Soyuz 29 capsule on 3 September and landed back on Earth later that day.

Sigmund Jähn (1937 –2019) was a German cosmonaut and pilot who in 1978 became the first German to fly into space as part of the Soviet Union's Interkosmos program.

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