"War badges" / "Kriegsabzeichen".
A unique German phenomenon that blossomed during Word War II, War Badges (“Kriegsabzeichen”), allowed an observer to determine the level of experience of a particular soldier at first glance. Though they were in existence before 1918, the number of German War Badges dramatically increased during the war and by 1945 there were over 40 different patterns. These were often subdivided into classes, distinguished by the metal type (Gold, Silver, and Bronze.