A specific error across Queen Elizabeth II's portrait means this coin could be worht 100 times its face value.

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

Take a sec to give that state quarter a second look before you drop it in the parking meter or vending machine. There are tons of statehood quarters out there, but some of them are worth way more than ...

An expert has urged Brits to keep an eye out for a valuable 50p coin that could fetch around £50. This particular piece ...