Progress of Aviation commemorative medal; Obverse: relief of Icarus, Dirigible, Curtiss Aircraft, free gas balloon depicted; Reverse: relief of a gaul depicted, embossed text "PROGRESS OF AVIATION, CHICAGO NUMISMATIC SOCIETY MEDALLIC SERIES MCMX". Created by Jason A. Smith Date Created 04/22/2016 Source National Air and Space Museum, Smithsonian Institution. Keywords Aviation; Awards; Medals Rights and Restrictions Not determined
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