Airspeed Indicator, 300MPH, Army Type C-14, US Army Air Force, WWII RAF the unit would automatically release

the unit would automatically release the instrument flying hood when the aircraft approaches airspeed limits

but are unable to translate them

This is an original WWII-era training booklet published by the US Navy's Aviation Training Division in 1944

The floating ball indicator no longer contains damping fluid

The top of the Throttle handle contains a button

Airspeed Indicator, 300MPH, Army Type C-14, US Army Air Force, WWII RAF the unit would automatically releaseThe Army Type C 14 Airspeed Indicator was used across a number of US Army Air Corps and Air Force aircraft during WWII, including A 29 Hudson Bomber, 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. See spec sheet in photos. It is in good