In the fifty-five years since World War II ended in Europe, there has never been a detailed book published in any country pertaining to the German police warrant discs (Erkennungsmarke-Dienstmarke) of the Third Reich era. Warrant discs were used in Germany for police identification. This book is geared to both the beginning and the most advanced and knowledgeable collectors. The large format, full color photographs of German police warrant discs show details of the features of both rare original discs and recent counterfeit pieces. This book is without equal in this esoteric field of collecting.