Commemorative (znachok) pin; rectangle shaped badge with port side profile of a Dyubovskii with blue enamel background; "1913, DYUBOVSKII, HISTORY OF AVIATION IN THE U.S.S.R. in silver letter text in Russian Cyrillic. Created by Jason A. Smith Date Created 05/21/2015 Source National Air and Space Museum, Smithsonian Institution. Keywords Aviation; Awards Rights and Restrictions Not determined
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