Unbound Gemini 4 final flight plan prepared by the Flight Crew Support Division Spacecraft Operations Branch, 98 pages, 8.5 x 11, May 19, 1965. Printed at the top of the front cover, “For in-house use only, For NASA internal use only.” The manual consists of three sections: Detailed Flight Plan, Detailed Activities, and Summary Flight Plan. Housed in a modern three-ring binder. In fine condition. An exceptionally clean example.