The collection of registry office cards from Dachau includes cards which contain only the prisoner’s name, prisoner number and release date. These cards were created after the war – probably by the International Information Office – for those prisoners who were known as Aktionsjuden (“special operation Jews”). These were Jewish men who had been arrested during and after the Reich pogroms of November 1938. As a deterrent measure, they were deported to Dachau, among other places. If they had survived their imprisonment in the concentration camp, most of these men were released between the end of 1938 and the beginning of 1939.