High quality reproduction U.S WW1 Army Corporal Chevrons. When America entered the war in 1917, it became clear that supply would be short, and unable to keep up with the drastically growing military. Because of this, starting in 1917, NCOs were only issued one set of two patches of rank. One for their Service Coat (Tunic) and one for their overcoat. Made from 100% wool on a wool background. Exactly like originals. Rank was worn on the right shoulder. Probably the best reproduction on the market today!