Turn and Bank Indicator Type A-8, Air Corps US Army, WWII, B-17, P-51, P-38 Sperry but that is a guess

but that is a guess

Here is a Direct Reading Magnetic Compass (Busola)

the leather could use some conditioning

LABS) is a method of bombing where the attacking aircraft pulls upward when releasing its bomb load

The glass and case are intact and the markings are in perfect condition

Turn and Bank Indicator Type A-8, Air Corps US Army, WWII, B-17, P-51, P-38 Sperry but that is a guessThis pre & early WWII era Turn & Bank Indicator Type A 8, made by Bendix Part No. 1718 2S A2 for the Air Corps US Army, was used across virtually all its aircraft 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 "AC US Army" (Air Corps US Army), and its serial number prefix is AC41, indicating the manufacturing