Recognition Light Control Assembly WW2-era SA2130C AAF 42D5051 AT-6 with the rubber eyepiece somewhat

with the rubber eyepiece somewhat deteriorated and a crack in the sight glass at its bottom

its use in the aircraft evidenced by the dog-eared binder and some pages

It covers the development and basic principles of instruments used in the era

this will do the job

Recognition Light Control Assembly WW2-era SA2130C AAF 42D5051 AT-6 with the rubber eyepiece somewhatThis Recognition Light Control Assembly appeared in nearly all of US Army Air Force aircraft of WWII by the end of the war, including the P 47N Thunderbolt Fighter (see photo of the right side panel of the cockpit indicating the location of the switch box). The toggles do flip and the keying switch still has its spring action. In very nice condition for its age. The side label is partially removed, see photo. Measures ~3 inches by ~3. 5 inches x ~2