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

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

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 ...

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

Explore the most valuable 1970 quarter errors, including overstrikes, doubled dies, off-center strikes, and wrong planchet coins. Learn how to identify each variety and see current value ranges for ...

The “Faceless Bat” error represents the most famous mistake on 2020 American Samoa quarters, where debris or grease between the die and planchet obscured the ...

The scarcity of the pieces means collectors are willing to pay for them A RARE £2 coin could fetch a staggering £1,000 if you spot a tiny but crucial mistake. A coin expert has revealed the exact ...

The 1776-1976 Bicentennial Half Dollar commemorates America’s 200th anniversary with a distinctive Independence Hall reverse design. This 1776 to 1976 half dollar ...