Airspeed Indicator,300MPH, Army Type C-14, US Army Air Force, WWII PV-2 Harpoon We aren't certain

We aren't certain

The light switch toggles

But for an 80 year old instrument

(approx 11 inches by 9 inches) containing maps and geographical reference information regarding the Japanese Empire circa 1943

or G-meter

Airspeed Indicator,300MPH, Army Type C-14, US Army Air Force, WWII PV-2 Harpoon We aren't certainThe 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. See spec sheet in photos. It is in good condition given its