Altimeter, Type C, Tyco, 25,000FT, WWI to 1926 Air Service USArmy Peggy Bomber Gun Director Mk 34 was

Gun Director Mk 34 was used in USN cruiser classes Baltimore

NAS Coco Solo housed several Patrol/Patrol Bomber aircraft during its tenure

made by Ludolph in August 1940

as appeared on the flight engineers panel of aircraft of the US Navy such as the patrol bomber / seaplane PBM-5 Mariner (see illustration showing the location on the panel from the PBM-5 flight manual dated 1944)

The toggles do flip and the keying switch still has its spring action

Altimeter, Type C, Tyco, 25,000FT, WWI to 1926 Air Service USArmy Peggy Bomber Gun Director Mk 34 wasHere is an Altimeter used in military aircraft of the Air Service, US Army, which existed with that name from 1918 1926 until it was renamed Air Corps US Army. Crudely measured altitude from 0 25,000 ft, which was pretty high for aircraft of that era and requiring supplemental oxygen for the crew to exceed ~12,500 ft based upon modern standards. The knob would rotate the face of the dial while the pointer remains fixed to set the present field