Fuel Quantity Indicator, Hydrostatic, Japanese Naval Aviation C-7 In its original wooden case

In its original wooden case

and BT-14 Yale

evidence of manufacturing year of 1952 for a USAF order

B-24 turrets (nose and tail)

These indicators are in good shape given their ages

Fuel Quantity Indicator, Hydrostatic, Japanese Naval Aviation C-7 In its original wooden caseThis is a fine example of the WWII era hydrostatic Fuel Quantity Indicator, manufactured by the Japanese under license from the US manufacturer Pioneer. This particular model was used in the A6M2 version of the Japanese Navy Figher Zero, aka "Zeke" (according to the Funatsu Aviation Instruments Museum Website. Hydrostatic fuel quantity indicators are readily identifiable by the pump knob at their base. The indicator essentially is measuring