APOLLO 12 MISSION DISPLAY DEVICESIGNED.
"NASA APOLLO 12 First Lunar Exploration Mission Information Display." A multi-colored slide-rule type device, 6 inches tall with expanded length of 15 inches. Released prior to the Apollo 12 flight by TRW Systems Group.
Two small front side display windows indicate local and mission ground elapsed times. A large "sequence of events" window moves in tandem with these time windows. Distance scales and associated flight velocities are also shown. The reverse side includes mission events after T + 80 hours and sliding scale timelines for the LM descent and ascent profiles.
SIGNED by CHARLES CONRAD, ALAN BEAN, and RICHARD GORDON.