Front: Reproduction of chart of concentration camp prisoner markings, describing the different colors, symbols and placement. Shapes are mostly triangles, with some circles, as well as Stars of David, colors include red, green, blue, purple, pink and black. The bottom righthand corner shows a prison uniform with the markings in their correct placement. Back: Blank postcard with purple text. A printed on purple stamp of Hitler\u27s profile facing right in the top right corner next to the word \u27Postkarte.\u27 Information Provided by Michael D. Bulmash: The victims of the concentration camps were not just Jews. Political prisoners (Communists, Social Democrats, etc.); Jehovah’s Witnesses who refused to take an oath of allegiance to Hitler ...