Compass, Aircraft, Direct-Reading Magnetic, Type 51 w/Fishbowl Lens Frank Fighter This is an exceptional example

This is an exceptional example of a remote-indicating Course / Directional Gyro Indicator as used in the 1950's Korean War-era MiG-15 jet fighter and other aircraft of the USSR's Soviet Air Force

By viewing the spirit bubble through the eyepiece

The letters AC US ARMY are embossed on its face

as well as for radar sets AN/APS-3 and - 4

Compass, Aircraft, Direct-Reading Magnetic, Type 51 w/Fishbowl Lens Frank Fighter This is an exceptional exampleHere is a vintage Aircraft Compass, Magnetic, which we believe is a Type 51 made by Aeromarine based upon a similar model viewed online. We believe it to be a pre WWII model for civil aircraft, but interested parties are invited to do their own research. This compass is in exceptional condition given its age. The fluid is intact and clear. The teardrop shape case is unblemished. There are adjustment knobs at the bottom one for gross adjustment and the