This is a good example of a super scarce Mauser M712 fully automatic Broomhandle pistol. These pistols were developed in the late 1930s based on the 1930 designed Broomhandle pistols that were fully automatic and which featured a detachable box magazine. The majority of these pistols were sold to China with some commercial sale to Yugoslavia and Europe. A few thousand were also used by the early Nazi SS troopers. This specific pistol is actually a second pattern M712 that uses the "Westinger" patented selective fire mechanism. The top of the chamber area is marked "WAFFENFABRIK/MAUSER/OBERNDORF YN" and there is a single Crown over "U" proof on the left side below those markings. Directly below the crown U proof is a serial number 45744, which is probably in a mid-production Chinese contract serial number. The right side of the lower trigger housing group is marked "WAFFENFABRIK MAUSER/OBERNDORF A. NECKAR/D.R.P.u.A.P." and the left side has the "MAUSER" banner logo with the correct style selector switch. The rear sight is graduated from 50-1000 meters. It has the standard 10 ribbed walnut grips with a lanyard ring on the end of the butt. It is complete with one detachable magazine.