B-24D Armament Service and Instruction Manual, 1943 F6F Hellcat It has a service label

It has a service label from the US Air Force Tinker Air Base's OCAMA (Oklahoma City Air Materiel Area)

for the Douglas C-54 Skymaster Transport (see photo)

This pre & early WWII-era Turn & Bank Indicator Type A-8

so it was likely made for a Navy version of the C-121 (R7V-1) or another US Navy aircraft

as used in the US Army Air Corps tricycle-landing gear (wings & nose gear

B-24D Armament Service and Instruction Manual, 1943 F6F Hellcat It has a service labelThis is an original WWII era Armament Service and Instruction Manual for the Consolidated B 24D Liberator heavy bomber of the US Army Air Force, copyrighted in 1943. It is in exceptional condition. At almost 200 pages, the manual details instructions for operating and servicing the B 24D's Bombing Equipment, Defensive Armament, Turret Operation (4 chapters worth). and a ~50 page supplement on the 50 Cal machine gun. The manual is hard bound, and in