Liwei Yang+ Alexei Leonov inperson autographs X-15 1969) was a critical milestone

1969) was a critical milestone in the Apollo program

some with better provenance but still nothing serious

This 7x9 rigid foam presentation bears a fragment of the flown X-15 #3 that has been recovered by a team of aerospace archaelogists and sold in an effort to ensure their preservation as as raise funds for future team efforts

There were three crewed missions

Liwei Yang+ Alexei Leonov inperson autographs X-15 1969) was a critical milestoneExtremely 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 !