Fuel Pressure Indicator, Type C-16, US Air Force WW1 and has a serial number

and has a serial number prefix of "USAF 49"

In the photo gallery

The two neon bulb holders are in place

model 8DJ20AFM

See photo of the location of the instrument on the MJB-1 control panel from the C-121 flight manual dated 1958

Fuel Pressure Indicator, Type C-16, US Air Force WW1 and has a serial numberThis is a Korean War era Fuel Pressure Indicator, Type C 16, as used in the US Air Force's first jet fighter, the Lockheed P 80 (later known as F 80) Shooting Star. This has been confirmed in the F 80 Illustrated Parts Manual dated 1958. Also see image of the panel from the P 80 Flight Manual dated 1945. This was also used in versions of the trainer T 33, according to its parts manual dated 1955. The C 16 Fuel Pressure Indicator displays pressure up