A manufacturing error on the 1999 Georgia state quarter has increased the coin’s value, and some collectors are paying as ...

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

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 ...

Manufacturing errors might be annoying when it comes to most products, but they can be a massive moneymaker when it comes to collectible money. Errors increase the ...