Vintage WWII 1940s U.S. Navy Enlisted Belt Buckle

This is a U.S. Navy enlisted belt buckle with the "USN" and eagle emblem, which was manufactured by Vanguard. Vanguard is a company that has been a major supplier of military insignia and accessories for the United States Armed Forces since 1918. During the WWII period and up to the early 1950s, Vanguard often used a hallmark on the back of its insignia that sometimes included the words "Vanguard" and "N.Y.". The company offers a wide range of belts, buckles, and other uniform accessories for the different branches of the military.