Sebou: regarding the "KONIG" mark on the R&S barrel that should actually be KÖNIG.
König was (might still be around) a barrel maker in Germany. They offered exchange barrels made of famous Krupp steel for the demanding bulls eye shooters. This included barrels for Italian R&S and Remingtons C&B revolvers. If memory serves it was ASP/Euroarms who launched the first Rogers & Spencer during the early 1980s and I had to have one. But was not happy with the factory barrel. So, I had König install one of their accuracy barrels into my R&S. She came back proof tested with a load recommendation, target and new front sight adjusted for that load.
In line with German proof testing regulations the new barrel was marked KÖNIG.
Very accurate pistol.