4" barrel, 9mm caliber. Forward toggle link stamped with Gothic S, possibly for "Simson". It has a stock lug and area above chamber is blank. Extractor and safety are both marked. Grips are also thicker. Fewer than 12,000 manufactured, with one- to five-digit serial numbers—some with letter "a" suffix. Quite rare on today's market. Add $200 to $400 for a matching mag. Up to $1,000 premium for a dated model (1925 or 1926)