Errors increase the value of collectibles because a limited number go into circulation before it is spotted and corrected. This Georgia quarter is a big one.

The Wisconsin state quarter features a cow, cheese, and an ear of corn. One version of this quarter gives the corn an extra leaf low on the ear. This may have happened when a tool was pushed into the ...

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 ...

If you grew up using Sacagawea dollars, state quarters, or those short-lived presidential dollars, there might be more money in your change jar than you realize. The 2000s were packed with new designs ...

If you have any spare change lying around, it’s worth checking if any of them are faulty, as a rare error coin could be worth hundreds of pounds. On 9 May, a rare ...