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 1943 penny errors represent some of the most fascinating and valuable mistakes in American numismatics. During World War II, the U.S. Mint switched from copper to ...

The 1980 penny error coins represent some of the most exciting finds for collectors searching through pocket change. With over 12 billion pennies minted that year ...

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 ...

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 ...

Some of the rarest and most valuable coins in U.S. history owe their worth to minting errors that slipped through unnoticed. Coins like the 1943 Copper Penny, struck in copper instead of wartime steel ...

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

Investing in the 1943 Steel Penny is like uncovering a small, silvery relic from America’s World War II era—where necessity turned copper into steel and created one of the most distinctive coins in ...

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 ...