J. P. Sauer & Sohn 1920

J.P. Sauer & Sohn 1920 Model was 25 ACP downsized version of their 7.65 mm Model 1913 pistol. This pistol is often known as WTM 20 or WTM 24. The bottom of the magazine is marked "S&S 6,35.W.T.M." in upper-case serif characters. There is no magazine safety. On the fore end of the slide and at the rear the gun features plunge-milled vertical slide serrations. The Sauer & Sohn caveman trademark is stamped on the rear of the grip tang. The left-side slide inscription reads "PATENT. / J.P.SAUER & SOHN, SUHL", in upper-case serif italic characters. The right-side slide inscription reads "CAL. 6,35. PATENT". The serial number is located on the right side of the frame, behind the grip plate. Disassembly instructions: Remove the magazine. Make sure that the gun is unloaded and uncocked. Press the safety lever up with your right thumb while pushing the slide back with your left hand. At about 15 mm you will be able to press the safety lever up into a detente in the bottom of the slide, locking it open. Depress the small lever at the rear of the slide. This will release the breech block and allow it to slide forward. The breech block, firing pin, two springs, and the disassembly lever can be slid forward and removed. These tiny parts can be easily lost, so be careful to collect them all. Push the safety lever down and allow the slide to move forward. When the slide is all the way forward, lift it up off the frame. The recoil spring remains captive in the frame, and there is no need to remove it. To remove the grips, move the safety up. Hold the magazine release to the rear. With a brass punch or other tool that will not scratch the button, depress the button in the lower right corner of the left grip. Move the grip up a couple of millimeters and lift it off the frame. Again holding the magazine release to the rear, depress the button from the right side until you can move the right grip plate up and remove it.