Vintage US Navy Academy Ex Scientia Tridens Embroidered Coat of Arms in Shadow Box in great condition (look under photograph magnification). Camera glare is present. Probably from the Vietnam era. The coat of arms, or seal, of the United States Naval Academy. Designed by Park Benjamin, Naval Academy Class of 1867, the seal was adopted by the Navy Department on 25 January 1899 (USNA). Beautiful colored embroiders on a background of black or deep navy blue in a gold distressed shadow box fame. Would make an excellent item for a US Navy Academy Graduate or military collector. Shadow Box Dimensions: H: 1-1/2″; 7-3/4″ X 7-3/4.