The Army Type C-14 Airspeed Indicator was used across a number of US Army Air Corps and Air Force aircraft during WWII, including C-46 Commando, C-47 Skytrain and C-54 Skymaster transports, according to the Accessories Interchangeability Chart dated Feb 1945. This C-14 was made by Bendix, part number 1426-1AE-A1, and has a serial number prefix of AF43, indicative of a 1943 manufacturing date.