Armament & Fields of Fire, Luftwaffe Aircraft USAAF Training Manual French Armée de l'Air so likely from a US

so likely from a US Navy or US Air Force aircraft

The remaining pages describe the aircraft of each nation's air services

The housing had been repainted at one point

as used in the US Army Air Force's Boeing B-29 Superfortress (see illustrations of B-29 Flight Engineer's instrument panel showing instrument location)

Armament & Fields of Fire, Luftwaffe Aircraft USAAF Training Manual French Armée de l'Air so likely from a USHere is an authentic original WWII era training brochure, "Armament & Fields of Fire, German Aircraft", published Dec 1942 by the US Army Air Force. This simple manual lists and illustrates the location of armament of 20 armed aircraft of the German Luftwaffe in service by 1942, and the fields of fire of each gun carried by each aircraft. This information was critical to pilots of US fighter aircraft and aircrew of bomber and transport aircraft as