The Right Way to Clean Old Coins

Whether you're a novice coin collector or just want to clean some collected pennies with your kids, here's what to do (and not do!) when cleaning old coins.

3 Ways to Clean Old Coins - wikiHow

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Gina Smith (ginasmithreyes) - Profile

uncleaned ancient coins - NumisWiki, The Collaborative Numismatics Project

People have been making up to $100,000 or more off this unusual hobby