Set of documents issued in Litzmannstadt by coal society to apprentice and old man. Those that belong to the apprentice are a contract of training for apprentices to work in coal sector. There's also a questionaire with photo of the young boy who begins to work in coal. There's also a kind of diplom of aptitude. There's also same questionaire issued to the older man with his photo. All documents are in good condition with entries, information of both of them. Nice set.