Sheet from the Apollo 11 lunar module Activation Checklist flown to the Moon and showing configurations of the spacecraft’s circuit breakers prior to separation in lunar orbit from the command module, signed by lunar module pilot Buzz Aldrin, accompanied by signed letter from Aldrin describing his fixing of a broken circuit breaker on the surface of the Moon, 1969. Flown Apollo 11 Checklist Sheet and a letter of authentication 1969-07-04