Official stapled manual entitled "Lunar Excursion Module, Familiarization Manual" by the Grumman Aircraft Engineering Corporation of Bethpage, New York, identified as “LMA 79001” and “NAS 9-1100, Exhibit E, Paragraph 10.2,” 129 pages, 8.5 x 11, July 15, 1964. The manual documents the mission description, LEM structure, operational subsystems, prelaunch operations, and ground support equipment. It is well illustrated with numerous fold-out charts, diagrams, and schematics documenting the mission, spacecraft controls, thrusters, instruments, and more. In fine condition, with scattered foxing and toning to the covers and fore edges.