I have come into possession of a Brilhart three band ligature (the one with the heavy screw plates on top.) It's pretty gnarly looking and it almost looks like it has blotches of remaining gold plate. Did they even gold plate these things? What would be the best way to restore this ligature to its former glory? Could it be gold plated without damaging it? I'm not looking to resell. This is purely for my own enjoyment.