Wayne, drop by your local coin store and pick up a jar of "e.Z.est" coin cleaner. It is good on silver, brass, gold, ect. The key point in using this is to only dip the token for one or two seconds and wash it off with water to nutralize the acid. Do not rub the token. Pat dry with a soft cloth. If you dip it too long it will turn the brass a funny color. It will clean most brass tarnish.