Altimeter, Sensitive, Type C-12, 50,000 ft, US Army Air Force WWII JU-88 With a serial # AC42-670

With a serial # AC42-670

left or right

The system included a sighting head connected to a mechanical (pneumatic) computer

can interpret them by rotating the card to match the arm position being observed

The clock is wound by turning this red knob counterclockwise from its home position

Altimeter, Sensitive, Type C-12, 50,000 ft, US Army Air Force WWII JU-88 With a serial # AC42-670Here is an early WWII era Sensitive Altimeter, Air Corps US Army Type C 12, made by Conn. The C 12 Altimeter was used across all aircraft of the Air Corps US Army, including heavy bombers B 17 and B 24, medium bombers, B 25 and B 26, Fighters P 38, P 39, P 40, P 47, and P 51, and transports C 46 and C 47, according to the Maintenance Interchangeability Chart dated Dec 1943. It has a serial number prefix AF 43, evidence of a manufacturing year 1943.