A real rock from Mars - NWA 6710 - Martian

Gemini flown artifacts are among the hardest to find on the market

The North American X-15 rocket plane was part of the USAF/NASA/USN X-series of experimental aircraft and set numerous speed and altitude records in the early 1960s

whose involvement in early high-speed flight research helped validate and refine the delta-wing design

A spectacular voyage with several postmarkers

STS-82 Hubble – FLOWN bay liner presentation Challenger A real rock from MarsSTS 82 Discovery flown payload bay liner 8x6'' laminated presentation containing a flown payload bayliner fragment from the Space Shuttle Discovery flown on STS 82. Originally issued by renowned Space expert Ken Havekotte.