For the most part, "cleaning" is a form of coin triage. There are a few recommended methods to remove contaminants and active corrosion, but actual abrasion is the last step before disposal. Pictures first, and we'll know what we're dealing with. Also there are other threads with this topic, so do a search and you'll get a little perspective.
And welcome aboard, you've come to the right place.
And welcome aboard, you've come to the right place.


















