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 ...

Coin Value Checker launches sophisticated coin grading and valuation services, leveraging cutting-edge technology to provide accurate assessments for a broad spectrum of coins, including Pennies, ...

In grocery stores, self-service coin machines—machines that count coins for consumers and offer cash in exchange—can be beneficial for the stores. But for retailers considering placing one in their ...