Use Mild Soap for Basic Cleaning Mix a few drops of mild dish soap in a small bowl with warm water. Soak the coin for a few minutes. Then gently rub it with your fingers or a soft cloth. This helps ...
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4 Mistakes To Avoid If You Find an Old Coin or Bill That Could Be Valuable
According to Donn Pearlman at the Professional Numismatists Guild, there are a few things you should absolutely not do before ...
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