Turn and Bank Indicator AN5820-1 Air Force US Army, WWII, B-17, P-51, P-38 Mosquito but is not labeled as

but is not labeled as such

This indicator has a serial number prefix "AF-43"

The H-4 was equipped with a boom mounted microphone M-6A/UR to be used below 10

The numerical digits along the perimeter of the dial indicate RPM in 000's

It is mostly filled with fluid and the compass card rotates

Turn and Bank Indicator AN5820-1 Air Force US Army, WWII, B-17, P-51, P-38 Mosquito but is not labeled asThis Turn & Bank Indicator AN5820 1, made by Burton under contract with Bendix Pioneer to the Pioneer Part No. 1721 2U A2, was used across virtually all aircraft of the US Army Air Force during WWII, including bombers B 17, B 24, B 25, B 26, fighters, P 38, P 39, P 40, P 47, P 51, and transports C 46 and C 47. Imprinted on the face, but barely discernible in the photos, is "AF US Army", and its serial number prefix is AF 44, indicates the