This card was designed for use in various concentration camps. Because the name of the camp could be stamped or written by hand, this form could be printed cost-efficiently and in large numbers.
Starting in 1942, up to 1,000 sub-camps and labor details were created in which concentration camp prisoners were forced to work for German companies and the armaments industry. These sub-camps and labor details were managed centrally by the main camps, which is why even prisoners in the sub-camps were officially issued Prisoner Registration Cards from the main camp. Therefore, even if a card from a main camp has been preserved, the respective prisoner might not have been imprisoned directly in the main camp, but in one of its sub-camps. From the summer of 1944, female prisoners in particular were often taken straight to sub-camps without spending any time in a main camp.