Thanks for the warning.

When I was talking of the cleaners and polishes, I wasn't talking about using it on the coins or strikes themselves. The proof finish of the silver, I would think, would be best left untouched.

I was referring to using the polishes on the old plastic capsules that have been replaced. I have kept all the old ones, except those that cracked or broke, and could try and see if I can polish out some of the scuffs and scratches.