Compass, Magnetic Direct Reading, US Navy Mark VIII (3) F-94 The center knob "Autopilot" rotates

The center knob "Autopilot" rotates and centers on a detent

as illustrated on in the US Army Air Force's Flight Manual

The metal clearly shows the effects of climate and age

as used in the US Army Air Corps tricycle-landing gear (wings & nose gear

also very similar to the ones of the N-3

Compass, Magnetic Direct Reading, US Navy Mark VIII (3) F-94 The center knob "Autopilot" rotatesHere is a fine example of the US Navy's Aircraft Direct Reading Magnetic Compass Mark VIII, as used in the SBD Dauntless Dive Bomber and the TBM Avenger Torpedo Bomber. This compass was installed above the pilots forehead, see image of the SBD's cockpit showing the location of this compass. This model was designated AN5732 1 later in WWII. The compass was illuminated electrically via bulb (included but operation unknown) mounted in a small compartment