Aluminum with black enamel finish. Approx. 4" dia. x 12" high. Used in polar navigation. Nameplate on the base reads "ASTRO-COMPASS MK II / The W.W. BOES CO. / DAYTON, OHOIO, USA Created by Charles Gosse Date Created 09/14/2011 Source Smithsonian National Air and Space Museum Keywords Aviation; Instruments Rights and Restrictions Not determined
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