Cowl Flap Position Indicator, 4 Engine, PB2Y Coronado, GE Type 8DJ4, Lear Avia Inc. B-25 or Machmeter

or Machmeter

Here is an aircraft Pressure Gauge

25 inches diameter and ~5 inches deep

Here is a 1940-50s-era dual engine Fuel Pressure Indicator made by Edison PN 34955

Measures 2

Cowl Flap Position Indicator, 4 Engine, PB2Y Coronado, GE Type 8DJ4, Lear Avia Inc. B-25 or MachmeterThis 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.