Altimeter, Sensitive, Type C-13, 35,000 ft, Air Corps US Army WWII B-17, B-24, P-38, P-51 Cold War They were only as accurate

They were only as accurate as the observers knowledge of aircraft identification and of course

Aircraft that may have used this have not yet been identified

As of 1969

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Altimeter, Sensitive, Type C-13, 35,000 ft, Air Corps US Army WWII B-17, B-24, P-38, P-51 Cold War They were only as accurateHere is an early WWII era Sensitive Altimeter, Air Corps US Army Type C 13 (also AN 5760 1), made by Kollsman. part number 671K 05. The C 13 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. The C 13 Sensitive Altimeter