2004 Wisconsin state quarters could be worth up to $6K: Here’s why

Wisconsin state quarters from the 50 State Quarters Program feature a limited-edition design that grows in value if there’s a detectable difference in that design, according to coin collectors.

Collectors have debated whether the extra leaf had been stamped by accident or with intent.

The record amount Heritage Auctions sold a Philadelphia-minted "regular strike" 2004 Wisconsin quarter sold for was $1,495.