Beautiful piece. I love it. From 2007 standard catalog of firearms: 4 Digit Dated Krieghoff. 4" barrel, 9mm caliber. It has a stock lug and the Krieghoff trademark on the front toggle link. The safety and extractor are marked, and the grips are brown plastic. The date of production, 1936-1945 is stamped above the chamber. There were approximately 9,000 manufactured within the 4500-14000 serial number range. EXC= 4000, V.G.= 3000, Good= 1850, Fair= 950, Poor= 750 add 20-35 percent for later years
There are more up to date refernece books but all of my current catalogs are in the car and it is raining outside.