I was looking for a good picture of the Crown/M on the Navy's, and saw this one on GB...but it doesn't have a good Crown/M...In fact, it has only one Crown/M, which I thought was odd...It sort of looks like my commercial Crown/N...
http://v2.gunbroker.com/Auction/View...Item=148921515
The rear sight looked strange (to me), too...
So...Did the German Navy use 30 cal Lugers???
BTW: This seller has a 1906 Russian Contract Luger, too...which is even stranger, as it has no proof marks that I can see...
http://v2.gunbroker.com/Auction/View...Item=148635045