US Naval Aviation 1910-60 Vickers It has a manufacturing date

It has a manufacturing date of March 1965

according to the US Army Air Force's Interchangeability Guide dated Feb 1945

was typically mounted inside of the wing or nose

This indicator has 3 calibration screws along each outside edge of the dial

hence the suction gauge in the upper right corner of the Vertical Gyro to indicate the performance status of the pneumatic system

US Naval Aviation 1910-60 Vickers It has a manufacturing dateThis 240 page chronology of US Naval Aviation History, published in 1960, contains all of the key developments in US Naval Aviation since its inception in 1910 through to 1960. It covers all aircraft development from bi planes, float planes, piston aircraft, multi engine aircraft, helicopters, and jets. Also included is the development of aircraft carriers and major battles supported by USN aviation during WWII and Korean War. Its a great historical