The very first group of C96 pistols made. -about 200 in total - are called "System Mauser" pistols. They have this hand-engraved on the top of the barrel, and have a number of other very early features that would quickly change. Most of these changes involve lightening the gun, but they also have a distinctive stepped barrel and a holster/stock that opened to the left; the opposite of all the later standard holsters.