|Apollo crew before start|
When NASA was preparing to launch manned spacecraft "Apollo" for landing on the moon, none of the insurance companies agreed to insure the lives of astronauts, since the risks were too high.
In order to compensate the families of the astronauts, after the possible accidents, NASA issued special cards on which the crew members left theirs signature before the departure. Each run produced a new card. Here's how they look:
If one of the astronauts died, their families would be able to sell the cards to collectors at a good price. But fortunately, all the lunar missions of the Apollo 11 and Apollo 16 in the end had no casualties.