Since then very few flown artifacts from Vostok 1 have surfaced on the market

hand signed by him

This extraordinary artifact comes from the personal collection of renowned astrophilatelist Jacques Bracke

Approximately two minutes after launch

Oleg Kononenko — Roscosmos cosmonaut and Flight Engineer

10 years MIR - FLOWN MIR cover Soyuz TM-22 Bill Pogue Since then very few flown10th Anniversary of Mir Flown Cover Signed by the Soyuz TM 22 Crew, Including Thomas Reiter An exceptionally rare Mir flown commemorative cover marking the 10th anniversary of the launch of the Mir space station, hand signed by the complete Soyuz TM 22 crew and certified on the reverse by veteran cosmonaut Yuri Usachev. The cover bears the special black onboard date cancellation 20 February 1996exactly ten years after the Mir core module was launched