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

Minting coins isn't exactly an exact science. Even though most coins are perfect and uniform, small mistakes can result in error coins that are super valuable and ...

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 ...

If you’ve ever run across a blank coin, chances are you thought a metal token got mixed in with your change by mistake. In fact, blank coins are not uncommon due to errors during the minting process.

While common, 1941 Lincoln Pennies can be highly valuable due to mint errors like the Double Die Obverse (DDO), Repunched Mint Mark (RPM), Off-Center Strike, and Die Cuds, with top errors reaching ...

People are encouraged to scrutinise their loose change for a rare £2 coin that could be worth significantly more than its face value. An expert has suggested that ...