The exhibition presents photos from a service album belonging to SS-Obersturmführer Karl Otto Koch that was found in the archive of the Russian secret service in Moscow. The album documents his career in the SS from May 1933 to mid-1937. In 1936 Koch took over the leadership of Sachsenhausen, the new concentration camp that was built as a “modern” concentration camp and model and training camp from which all the concentration camps were soon to be administrated and organized. Koch had previously served as commandant in the camps Hohenstein, Sachsenburg, Columbia Berlin, Lichtenburg and Esterwegen.