The 'IS' you note is actually a stylized lion-shape 'D' for 'Deutsche Werke. Apparently, scads of these things were imported into the United States in the 1920s and '30s (John Dillinger even had one), for they do turn up quite regularly. These guns were made in 6.35mm (.25 ACP), 7.65mm (.32 ACP) and 9mm Kurz (.380 ACP), so ammo availability is no problem. Paris, OHĪ: As the slide indicates, you have an Ortgies autopistol. The Ortgies 6.35 mm pistol was a hammerless semi-automatic pistol produced in Germany in the years immediately after World War I, first by its inventor Heinrich Ortgies and then by Deutsche Werke. Please note: There is some pitting and finish wear on the slide and frame. What is the proper ammo? What can you tell me about the gun? -K.L., St. For sale is a Deutsche Werke Ortgies semi-auto pistol in 6.35mm. I need to find some ammo so I can at least see if it will cycle (I don't intend to fire it before I have a gunsmith check it out). It has walnut grips with 'IS' in circle inserts. The barrel and magazine are marked '6.35 m/m.' The bottom of the frame is marked 'GERMANY,' along with the serial number. The left side of the slide is marked 'DEUTSCHE WERKE ERFURT.' The right side is marked 'ORTGIES' PATENT.' Behind the triggerguard is a proofmark that looks like a Chrysler symbol with an 'N' under it.

It is 51/2 inches long with a 21/3-inch-long barrel. Q: I have a little pistol I need identified. Funny thing is, the Dewtsche Werke factory was destroyed during WWII.

Deutsche Werke Ortgies Serial Numbers