Compass, Magnetic, Type B-14, Air Corps US Army, Pre-WWII Dinah Reconaissance Here is a Direct Reading

Here is a Direct Reading Magnetic Compass (Busola)

See image of technical description of the system

25 inches diameter by 6

evidence of a manufacturing year 1943

40mA) Turn and Bank Indicator Type EZS-3 made by

Compass, Magnetic, Type B-14, Air Corps US Army, Pre-WWII Dinah Reconaissance Here is a Direct ReadingThis is a example of a pre WWII era Magnetic Compass, Type B 14, made by Kollsman using its Poly Plane Compensator design. It was made for an order by the Air Corps US Army (as evidenced by the embossed AC US ARMY) in 1937 (further evidenced by the serial number prefix AC 37). It is an electrically lighted compass, with two small lamps intact, one each above and below the lens. The fluid is discolored and about 2 3rds level. But for an 80 year old