Liwei Yang+ Alexei Leonov inperson autographs X-15 some with better provenance but

some with better provenance but still nothing serious

Five individual trading cards with interesting facts about each Space Shuttle - each with a flown insulation foil from the respective orbiter:

From the celebrated astrophilatelic collection of Jacques Bracke

A triangle piece of aluminum foil (a spare piece from Apollo SWC) mounted onto a 6x8 card presentation

1969) was a critical milestone in the Apollo program

Liwei Yang+ Alexei Leonov inperson autographs X-15 some with better provenance butExtremely rare inperson signature of Liwei Yang and Alexey Leonov, obtained by cosmonaut Treshev's son Alexey during the ASE congress in Beijing 2014. Comes with COA and further documentation !