Cowl Flap Position Indicator, 4 Engine, PB2Y Coronado, GE Type 8DJ4, Lear Avia Inc. B-25 Here is an aircraft Pressure

Here is an aircraft Pressure Gauge

The knobs are functioning but stiff

25 inches diameter and ~5 inches deep

The earth's surface reflects some of this radiated carrier

Cowl Flap Position Indicator, 4 Engine, PB2Y Coronado, GE Type 8DJ4, Lear Avia Inc. B-25 Here is an aircraft PressureThis is a Cowl Flap Position Indicator for a 4 engine aircraft as used in the WWII era US Navy Patrol Bomber PB2Y Coronado made by Consolidated, GE part number 8DJ4PBH . See photo of the Coronado's engineers panel showing the location of this instrument from the Flight Manual dated 1942. Measures 3. 25 inches diameter and 3 inches deep. It is in exceptional condition for its age.