This is a rare early "pre-production" low grip screw variant Prototype Mauser Model HSc pistol. This example does not have the standard serial number in the "700,000" range on the front of the lower frame as was done throughout normal production. It is actually marked with only a single letter "V" on the lower front of the frame with the serial number "V" as noted on the underside of the frame behind the magazine release button. Consequently it is considered as a pre-production model. This rare Mauser HSc was probably produced in late 1938 or sometime in 1939 during the early developmental stage and is actually one of only a handful known in this range. The left side of slide is marked with the early factory markings of a: "Mauser Banner" logo, followed by, "MAUSER-WERKE A.G. OBERNDORF a.N./MOD. HSC KAL. 7,65mm", with an early "Eagle/N" commercial proof on the lower right side trigger guard bow. The slide and barrel are not serial numbered (which would be correct for a early pre-production pistol) however both are proofed on the under with the single early intertwined "R/W" Mauser factory proof mark. The top of the slide has the real early smooth concave, milled sighting slot on top with the standard fixed front sight and a dovetailed rear sights. It is fitted with a set of checkered walnut grips and comes with one early Mauser marked commercial magazine.