Postby Qrt.S » Fri Jan 11, 2019 9:22 am
OK, silver on copper means silver plated. However, I have never read, heard or seen any Russian objects showing that the Russians would have used the Old Sheffield Plate process. Russian companies did produced electroplated goods, but that is much later. I don't think this is not OSP but ordinary Sheffield plate i.e. electro plated (EP). Nonetheless, everything is of course possible but still.... not OSP is my humble opinion. Anyway, Hose you are a specialist on EP and OSP. In addition, OSP has some significant signs, look for them, do you find such? Looking on a photo will not reveal enough.