Each mission artwork shows a unique feature of that flight

Such markings illustrate how astronauts and training crews refined procedures while preparing for lunar surface operations during the historic Apollo 17 in December 1972

Please note : Due to the nature of the source artifact each presentation differs slightly in shape

Here's the story behind:

Apollo 13 almost turned into a disaster when an oxygen tank exploded and forced the crew to abort the lunar landing mission goal

Soyuz MS-26 – crewsigned backup crew launch cover Jim Irwin Each mission artwork shows aRARE : Soyuz MS 26 backup crew hand signed launch cover by the crew Jonny Kim, Sergey Ryschikov and Alexey Subritzki.