Fluggeschwindigkeitsanzeige, sensitiv, 700 Knoten, Army Type F-1A, US Army Air Force, WWI
167,79 €
It was also used in versions of US Army Air Force WWII fighters P-38, P-39, P-40, P-47, and P-51. It is labeled in Knots, so likely for a US Navy aircraft. Army type F-1 is a sensitive airspeed indicator.
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