One of the world's rarest star charts!
This Star Chart, with its accompanying Star Key, was used in the Lunar Module "Orion" on the Moon!
Its purpose was to allow the astronaut's to complete a "Lunar-Surface Alignment" after landing.
Just as ancient mariners used the stars on Earth to guide them across unknown seas,
so too did the first lunar explorers also reference the stars, even while on the Moon!
Both the Star Chart and Star Key have been properly flight-certified by
Charles M. Duke, Jr., whose certification certificate is included.