This DWM 4inch Navy Luger, double-date 1917/1920 with Navy (Crown M) proofs is on GA.
http://www.gunsamerica.com/guns/976738104.htm
What makes it a 'Navy' Luger? Is it the unit marking? I don't see that it has Navy-style rear sight. I want eventually to get an authentic Navy P04 so I need an education (so what else is new?) I like those with six or seven-inch barrels anyway.
Russell