fuhrmann,

I sure like the lines of the, as Axel explained to us, "Altdeutsche Backe" = old German cheek-piece" or a "Verlaufende Deutsche Backe" = running out German cheek-piece such as that on the drilling that you have posted for us. I'm not familiar with P. Oberhammer and hope that one of our experts has something on him. I take it the lever on the right is the selector. It would be interesting to see the details of how it works.

Regards,

Mark