Original U.S. WWII AAF Astro-Compass Mk. II by The W.W. Boes Co. in Original Case British Uniform the Dreyse needle gun which

the Dreyse needle gun which had seen service during the Franco-Prussian War of 1870–71

and has 12 different compartments

which is now almost completely worn away

38 on the upper right rear

It is marked on the back with RZM and maker code U

Original U.S. WWII AAF Astro-Compass Mk. II by The W.W. Boes Co. in Original Case British Uniform the Dreyse needle gun whichOriginal 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