Radio Compass Indicator, I-65-D, of SCR-280-A Radio System, Signal Corps US Army, NOS Piasecki judging from the anchor symbol

judging from the anchor symbol on the lower left of the dial

EPR indicators were used in jet engine aircraft

This is a mechanical Ball Turret Position Azimuth Position Indicator

the indicator displayed total fuel quantity up to 17

The electrical serviceability is unknown

Radio Compass Indicator, I-65-D, of SCR-280-A Radio System, Signal Corps US Army, NOS Piasecki judging from the anchor symbolThe Pilots Radio Compass Indicator, I 65 D, was a component of the SCR 280 A Radio Compass System, as used in early versions of the WWII era Air Corps US Army Douglas C 47 Skytrain transport, according to the US Air Service Command's Airborne Radio Equipment Handbook dated 1943. This indicator was manufactured before WWII, in November 1940. The radio compass, receiving ground signal from a selected transmitter via its loop antenna mounted top or