This compass originally was designed by Dr. Henke for F. W. Breithaupt & Sohn (Kassel)

The model name was COHEN 

 F. W. Breithaupt & Sohn (Kassel) is an old German company with a long tradition which delivered many compass types to the industry (mines) and  armies. 

This compass is a copy of the model COHEN  The scale is 360 degrees.