1937 S/42 Luger. Made by Mauser. 9mm Luger cal. All numbers that can be seen from a field strip match. The magazine does not match. Has black grips that have been on the gun since its purchase in the mid 1960's. They pass the "hot pin" test and have holes in the back that are threaded to match the grip screws. I believe these are authentic "black widow" grips that were added to the gun at some point, but I am not a Luger expert. I do not believe these grips were on the gun when it left the factory. As can be seen in the pics, much of the bluing is gone, but the gun is mechanically OK. $1500. I am in Beaumont, TX. The best way to reach me is by phone - 4 0 nine - two 5 6 - three 3 3 five.