Employment office staff pasted a work permit document inside labor cards and stamped it with the stamp of the respective employment office. This documented the company or other place of work to which they had assigned the person. Katerina Djatschenko was required to perform forced labor at the Elektrolux company in Berlin-Tempelhof and was given a gray slip (“Grauzettel”) valid for industrial workplaces. Civilian forced laborers working in agriculture were issued a green slip (“Grünzettel”).