This forum is for the discussion of USA coin and paper money collecting that is unrelated to saving bulk Copper Bullion Penny, Nickel & CuNi Bullion Nickel, or Silver Coins for metal content. Feel free to post scheduled coins shows.
yep, pure acetone.... just make sure it isn't the nail polish remover that is not pure, you need the stuff from a hardware store. soak it overnight or longer if you have to, do not rub it off with anything