making it a genuine flown-mission-era artifact from one of NASA’s most iconic programs

The cover was flown from Earth aboard Atlantis and postmarked aboard Mir on June 29

this signed Bell X-1 model is a tribute to the dawn of supersonic flight and one of the most celebrated pilots in history

STS-51L) and during re-entry (STS-107

Hand-signed by Charlie Duke with the note: "Used in the LM simulator"—a powerful testament to its authenticity and provenance

Soyuz MS-04 - crewsigned cover Autographs making it a genuine flown-mission-eraStriking Soyuz MS 04 launch cover hand signed by the crew Jack Fisher and Fyodor Jurchitchin.