Re: Does anyone know anything about a German WISCHO-KG MOD11 25 CAL PISTOL
I believe WISCHO was a distributor, not a manufacturer. The guns may have been made by Reck, but I don't know for sure. WISHCO today seems to sell only air guns, due to Germany's restrictive gun laws.
Anyway, those were imported prior to 1968; they are made mostly of a cheap zinc alloy and sold for around $17-21 at the time. They fall into the general category of Saturday Night Specials. Value, if fully functional, is around $50, but they are very poorly made and jams, failures, and breakage was common when they were new.