Coin grading secrets every collector should know Coin grading isn’t just a technicality—it’s the language of trust and value in numismatics. From the Sheldon 70-point scale to authentication methods, ...

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 ...

Starting a coin collection doesn’t require deep pockets — just curiosity, patience, and a bit of know-how. From spotting valuable finds in your spare change to understanding grading systems, small ...

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 ...