Coin collecting is getting a high-tech boost as AI-powered tools transform grading, valuation, and sorting. From identifying rare mint errors to cataloging collections, these innovations make ...

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 ...

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 ...

MANILA, Philippines — The Professional Coin Grading Service (PCGS), an authentication and grading company for high-value collectibles, joined the Minted MNL Summer Show and Auction held earlier this ...