which is signed by Irwin on the backside

Armstrong and Aldrin began their descent to the Sea of Tranquility and performed the first steps on the Lunar surface

CRS-29 delivered several significant scientific and technological investigations

Former record cosmonaut Gennady Padalka hand signed 8x10 inflight glossy photo

Copies of the original source documentation and supporting provenance are included whenever available

Soyuz MS-21 + Dragon Crew 4 flown ISS cover - crewsigned Rusty Schweickart which is signed by IrwinSoyuz MS 21 and SpaceX Crew 4 Flown ISS Cover Signed by Seven Spacefarers Exceptional cover flown aboard the International Space Station, officially postmarked in orbit and hand signed by the complete crews of Soyuz MS 21 and SpaceX Crew 4. The cover brings together seven astronauts and cosmonauts representing Roscosmos, NASA and the European Space Agency: Soyuz MS 21 crew Oleg Artemyev Soyuz Commander, Roscosmos Denis Matveev Flight Engineer,