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

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

CoinKnow is our top recommended coin identifier that uses AI technology to identify coins through photos and is one of only ...

Turns out these common minting mistakes from 1979 are worth up to $5,000 - and you might have one sitting in your change jar ...

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 ...

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 ...

Searching for the 9 best coin identifier app free options to discover your coins' true worth? Today's AI-powered coin ...

People have been advised to examine their loose change for four specific coins that together could fetch more than of £1,000.

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

This guide breaks down the best free coin identifier apps for U.S. and international coins, accuracy, error detection, and who each app is really for.