A 2004 Wisconsin quarter struck at the Denver Mint with an unexplained extra leaf on its corn stalk has become one of the ...

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 ...

Most people keep quarters in a jar by the door, never giving them a second glance. They're just quarters. Twenty-five cents. But if one of yours happens to be a 2004 Wisconsin state quarter from the ...

State quarters may seem like ordinary pocket change, but certain rare varieties, minting errors, and top-grade examples have become sought-after collectibles with strong investment potential. While ...