Just finished watching the documentary "Last Man on the Moon", the story of Gene Cernan. I am also a big fan of the DVD series "When we Left Earth" and have watched it end to end 4 times. A while back I bought an original stainless steel fuel filter that went to the 54,000 horsepower fuel pump that fed the Saturn V rocket (still had the sealed bag and a Rocketdyne sticker on it).
So I'm interested in the subject but do not own a space related pin.
What's your fav?
If its not in the poll, please comment below