Arbeitsbuch Für Ausländer (Workbook for Foreigner) identity document issued to a Polish Forced Labourer in 1942 by the Germans together with a letter “P” patch that Poles were required to wear to distinguish them from the German population.

Arbeitsbuch Fur Auslander 1942.jpg

https://en.wikipedia.org/wiki/File:Arbeitsbuch_Fur_Auslander_1942.jpg