WWII Nazi Germany - Buchenwald Concentration Camp Prisoner Sleeve Insignia - a rare and interesting prisoner insignia from Buchenwald concentration camp. This "Armelabzeichen" (sleeve insignia) is marked "BUCHENWALD" and comes with an early museum period picture postcard of the camp and an old German language index card. Attached below is an archive scan showing similar insignia worn by prisoners. The material is UV-negative.