Compass, Magnetic Direct Reading, US Navy Mark IX with Plaque Northrop as documented in the F-86F

as documented in the F-86F Maintenance Manual dated Sept 1954 (see photo of page from this manual showing the instrument and the AN #)

often the home airfield

and Aft Left and Right Hand tanks

with a few color pages for badges and insignia

Here is an original WWII-era Naval Aircraft Instrument Familiarization and Inspection Handbook

Compass, Magnetic Direct Reading, US Navy Mark IX with Plaque Northrop as documented in the F-86FHere is an example of the WWII era US Navy Aircraft Direct Reading Magnetic Compass Mark IX, as used in the seaplanes PBY Catalina and PBM Mariner Patrol Bombers. The compass was illuminated electrically via bulb mounted in a small compartment over the compass itself. Inside the same compartment is access to the direction compensating screws, used to calibrate the compass. This example is in very good condition for its age. The fluid is intact but not