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 ...

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

Coin collecting can be very daunting at times, but the authors of these books have given numismatists the knowledge they need to guide themselves through the world of coins. Making sure to include as ...

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

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 ...