Original, working condition WWII German Luftwaffe Mutterkompass - Master Compass Fl. 23331 with original Holder.
This type of compass was used on MANY German aircraft, such as the Me109, Fw190, Me262, Ju88, Ju87, Me-110, and others. This compass was the main navigation device used by German aircraft. It was usually positioned in the rear fuselage of the aircraft, and sent a signal to the smaller, "Fuhrertochterkompass", which was located on the pilot's control panel. These two instruments would work together to indicate the aircraft's heading to the pilot. It was used on almost all Fighters, Bombers, and Jets.