Coin grading is the process by which a certified numismatist determines the grade, or physical condition, of an existing coin. Once the grade is determined, the value of the coin can then be ...

Talk about pocket change. Coin collecting might be a profitable hobby, but it takes a great deal of practice to recognize what’s rare and what isn’t. In fact, spotting a certain dime, known as the ...

GRAND RAPIDS, MI - A Grand Rapids-based inventor has developed a first-of-its-kind device designed to transform how collectors grade and value their coins. The OCS200, created by Richard Colonna of ...

If I stumble on an old coin or bill in a drawer, my first instinct might be to clean it up or rush to sell it, but those snap decisions can quietly erase hundreds or even thousands of dollars in value ...

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