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 ...

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 ...

There are a lot of coins worth money — some rare coins that have sold for hundreds of thousands or even millions of dollars.… ...

Ever found a mysterious coin and wished you could instantly know what it is? You’re about to discover something amazing: your ...