Original U.S. WWII AAF Astro-Compass Mk. II by The W.W. Boes Co. in Original Case Antique Flintlock Firearms It was constituted in the

It was constituted in the Regular Army but most of the support elements were "Regular Army Inactive" (RAI) units manned with Organized Reserve personnel

A good lot of maps

It comes in its original canister with markings

and later the forces of Britain

Original U.S. WWII AAF Astro-Compass Mk. II by The W.W. Boes Co. in Original Case Antique Flintlock Firearms It was constituted in theOriginal Item. Only One Available. At high latitudes where magnetic variation can be erratic and the angle of magnetic dip can be steep, magnetic compasses are essentially useless. This instrument, on the other hand, indicates true north when pointed at a known star. It was made for military use during World War II, and surplussed soon thereafter. It is well suited for aligning a boats compass while away from shore based magnetic interference. It is