The matching Christmas Day postmarks provide direct evidence that the complete correspondence was present aboard the station during Expedition 10

STS-122 „Flight supplement“ checklist used by Hans Schlegel in training for STS-122

while a delightful note across the top asks: “Which fur coat should I buy for my mother

It is not presented as loose lunar material independently removed from a government-held sample

a direct connection to the historic lunar exploration of the early 1970s

Soyuz MS-10 + MS-12 flown cover - crash mail - Christina Koch Gordon Cooper The matching Christmas Day postmarksUnique cover flown on the aborted flight Soyuz MS 10 and again on Soyuz MS 12 with cosmonaut Alexey Ovchinin who certified the cover on the backflap ! Cover was onboard MS 10 and got slightly creased from the hard touchdown of the capsule, it then flew again with MS 12 and got signed and postmarked in space 15. 3. 2019 by 12 astronauts and cosmonauts in the first woman to fly to the moon Christina Koch. Also signed by Jessica Meir who did the first