Most people treat spare change and crumpled bills as an afterthought, something to toss in a jar or hand over without a ...

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. An overflowing change jar is a sign that your coins need a new home. This can mean moving your spare quarters and dimes to a ...

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.

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 ...