Abrams Universal Sun Compass and analemmatic sundial. Used in vehicles during ww2 . It allowed users to determine compass bearings when magnetic variation was too high to reliably use a magnetic compass. the device mounts on a vehicle, and by knowing correct time, the vehicles course can be determined by the shadow cast onto the plate or dial. American. Scarce.
Features black disc, 360 degree outer edge with attached time plate. 4 shadow pointers are included, to be fitted on gnomon. Complete with original literature and attachments, in olive painted wooden box. A true piece of American Military history.
Marked: 'C. of E., U.S.A., SUN COMPASS'
Weight: 7.6 lbs.
Dimensions: 10.00" x 10.00" 2.75"