The 1975 penny error list includes some remarkable mint mistakes that can transform an ordinary cent into a valuable treasure ...

Explore the most valuable 1970 quarter errors, including overstrikes, doubled dies, off-center strikes, and wrong planchet ...

This particular "quarter" is among the rarest of its kind. One, it's a double-denomination, and what's more, it's a proof ...

Chesley McNeil explains why rare dimes like the 1894-S Barber dime, pre-1965 silver dimes and mint-error coins could be worth ...

Only about 20 of these rare coins exist today. If you find a copper-colored 1943 penny, test it with a magnet first—steel pennies stick to it, while copper ones don’t. These error coins have sold for ...

Explore the 1967 quarter error list, including DDO, DDR, off-center, wrong planchet, and rare silver errors, plus values and ...

If you want to understand why some mistake coins become worth millions, this article will explore six valuable examples that made headlines in the collecting world.

The 1776 to 1976 Quarter FS-101 Double Die Obverse represents the most sought-after error in the bicentennial series, showing ...

This November will now go down in history. The Philadelphia Mint officially marked the end of an era in the United States by ...

People who grew up before smartphones learned to handle everyday tasks in ways that feel almost old-fashioned now. They relied on memory, simple tools, and trial-and-error instead of apps and instant ...

PHILADELPHIA (AP) — The U.S. Mint on Wednesday ended production of the penny, a change made to save money and because the ...