United States Marine Corps embroidered 51st Marine Air Defense Battalion shoulder insignia; white embroidered numeral "51" with blue embroidered anti-aircraft gun depicted in center; white embroidered letter text "USMC". Created by Jason A. Smith Date Created 06/04/2015 Source National Air and Space Museum, Smithsonian Institution. Keywords Aviation; Awards Rights and Restrictions Not Researched
For more information, visit the Smithsonians Terms of Use.