Compass, Type 1, Japanese Army Aircraft, Tokyo Aero Indicator Co. P-39 Likely from the 1960s or

Likely from the 1960s or 70s and a US Navy aircraft

but a specific link between this instrument and these aircraft has not been established

vs a more concentrated drop over a specific site such as a ball bearing factory

part number 560-422

This is a 1950s-vintage aircraft Fuel Quantity Indicator

Compass, Type 1, Japanese Army Aircraft, Tokyo Aero Indicator Co. P-39 Likely from the 1960s orThis magnetic compass, made by Tokyo Aero Indicator Co. was primarily used in early aircraft of the Japanese Army (Type 91 Fighter, Type 95 Model 3 Trainer, Type 97 Heavy Bomber, Type 98 Direct Co operation aircraft, Type 99 Trainer, and Type 100 Transport) but also used in the Type 97 Mitsubishi Ki 21 Sally Bomber.