While 3D scanning project of the Apollo 11 Command Module, museum staff uncovered writing on the interior walls of the module. These lockers and cabinets within the Apollo Command Module used alphanumeric codes to assist the process of stowing necessary equipment. Locker B2 was initially reserved for personal items carried to space by the astronauts. Sometime during the mission the personal items were moved and one of the astronauts seems to have posted a reminder that the substitute items should probably remain there undisturbed for the rest of the mission.