You never know when you might come across a valuable error coin, so it helps to know what to look for. Here's a look at five ...

Most people toss their quarters into a jar without a second thought. Yet tucked inside those piles of pocket change, a few ...

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 ...