A landmark event in the international numismatic market occurred recently with the sale of a 1927 Chinese Republic Chang Tso-lin Silver Specimen Pattern Dollar for $4,320,000. The sale, concluded ...

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 ...

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 ...

CoinKnow provides comprehensive valuations using recent auction data from Heritage Auctions and Stack's Bowers, updated monthly. Coinoscope's value estimates are vague and unreliable, often varying ...

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