Nice set to a Polish worker from Katowice that comprises: his Dienstausweis (service certificate), his Werkzeugbuch (Tool book, or the book were his competence in the handling of tools and machinery at work are registered) and also his Arbeitsbuch (working book), this one missing the first page but rare if we talk about the fact that it's a scarce bilingual Arbeitsbuch with lot of entries and also issued to workers of the Generalgouvernement. A photo of the worker is also attached to one of the documents, so we would say it's a great period set!