Deutsches Reich Arbeitsbuch

Deutsches Reich Arbeitsbuch-This is a great book with lots of entries. The name of the worker was Rudolf Erdmann and he was born on 16.5.1904. There are entries from 1930 through 1941. He worked at a few different companies as an electronics engineer. One was Telefunken, the next was Blaupunkt and finally Siemens. Really interesting!