Hi All, I have a couple of frames from the late 20's and mid 30's that are/were nickel plated. The nickel plating is about 85% somewhat intact, and I don't want to refinish with a solid color finish. I would like to keep the original nickel, but touch it up in the missing areas. My question is, has anyone had experience using Caswell's "Plug N' Plate Brush Nickel Plating kit? If so what level of metal preparation, etc. Any information would be appreciated. All the best, Phil Easton, Cambria, California, USA