Compass, Aperiodic, US Army Air Force Type D-12 Victor Production was only about 500

Production was only about 500 units

and the markings on the face are in place (yet changing color from the many years) and unblemished

made by Kollsman

This Cold War / Vietnam War era Course Indicator MN-97 Omi-Mag was made by Bendix for use in aircraft of the US military and commercial carriers

See diagram from the UH-1 Flight Manual

Compass, Aperiodic, US Army Air Force Type D-12 Victor Production was only about 500The US Army Air Force Type D 12 Direct Reading Aperiodic Compass was used at the navigators station across many US WWII aircraft, including heavy bombers B 17, B 24, B 29, medium bombers B 25 and B 26, and transports C 46, C 47, and C 54. Made by Bendix, part number 1832 1 A, it has a serial number prefix of AF 45, indicative of a manufacturing year 1945. The navigators' direct reading compass is known as an aperiodic (without a period) compass, since