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

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

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

The 1959 penny marks a pivotal transition year for Lincoln cents, introducing the Memorial reverse design. Among billions minted, several valuable error coins emerged. This 1959 penny error list ...

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

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 ...

Only about 20 of these rare coins exist today. If you find a copper-colored 1943 penny, test it with a magnet first—steel ...

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

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.

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 ...