Deutsches Reich Arbeitbuch-This one has lots of entries. The name of the worker was Willi Schritte and he was born on 15.7.1912. There are entries from 1930 through 1939. He worked at a few different companies as a master roofer. One was Telefunken, the next was Blaupunkt and finally Siemens. There is an extra loose page included. Really interesting!