Arbeitsbuch für Bergleute, issued on 1937 to miner Helmut Matthia from Gladbeck
He was 15 years old when he started to work in the Bergwerkgesellschaft Hibernia
 
Rare issue of a 1937 Arbeitsbuch  instead of the typical, well-known brown Arbeitsbuch 
 
condition: normal aging traces, complete