canvasback,
I can't answer your question about the serial numbers, but I wholeheartedly agree with you concerning the quality of their work. They were allowed by the Allies after The Great War to continue working after the war and do the post war re-work of the weapons for the small army they were allowed keep. In addition to the owners being Jewish, this permission contributed to the hard feelings that resulted in the loss of the company. If you go to German hunting guns.com you will find additional information.
Mike
