My future wife's brother-in-law found one of these in his father's effects. It is a neat little pre-WWII pocket pistol, made in fairly limited numbers, and issued to police, military officers, etc. A rep from "the" Sauer collector organization said this particular one, based on serial number and/or an acceptance stamp, was issued to Prussian police. There are no import marks, and it is extremely clean on the inside, and about 75% on the outside. It has a loaded-chamber indicator, that consists of a spring-loaded pin at the top-rear of the breechblock, then another piece that spans the gap between the plunger and the chamber. The second piece is retained by a cross pin. The gun in my possession has the retaining pin, but the front half of the indicator is missing. The Behoerden was a development of an earlier Sauer pistol that did not have the loaded-chamber indicator, so I suspect the part is pretty rare. But, if anyone has a source for Sauer parts, either in the US or Europe, please post. Thanks