Minting coins isn't exactly an exact science. Even though most coins are perfect and uniform, small mistakes can result in error coins that are super valuable and ...

Modern smartphone technology has revolutionized coin identification and valuation. Whether you’re a seasoned numismatist or ...

As with just about any asset, a coin’s value is determined by its market demand. This means that coins in short supply often see higher demand — and higher values. With coins, supplies are limited ...

The 2025 Penny Error market presents a unique opportunity for collectors, as these coins represent potentially the last year ...

As with just about any asset, a coin’s value is determined by its market demand. This means that coins in short supply often see higher demand — and higher values. With coins, supplies are limited ...

Discover rare 1990 penny errors, their values, and how apps like CoinKnow help identify valuable coins instantly.

The 2003 Nickel Error List contains some of the most sought-after minting mistakes that collectors actively hunt for today. These errors can transform a five-cent coin into a valuable treasure worth ...

“There aren’t a ton of options for valuable, circulating European coinage,” said Ben Wengel, an expert in authentication and the minting process who has handled, authenticated, and graded over a ...