Germany, Third Reich. A Dachau Identification Disc

(Erkennungsmarke). An identification disc, with three slots, constructed of zink, the obverse stamped on both sides of the slots with K.L. DACHAU (KONZENTRATIONSLAGER/CONCENTRATION CAMP DACHAU), stamped with the number 147, the reverse unmarked, with three drill holes, measuring 70.20 mm (w) x 50.12 mm (h), and in good condition.