The rare coin, which has been sold for more than £500, is still believed to be in circulation and features an error that makes it extremely valuable ...

They must feature specific errors to be particularly valuable ...

An expert has joked that you can “take an early retirement” if you have find three specific £2 coins - and says one is worth ...

People have been told to take a closer look at their loose change for three rare coins that could be hidden amongst them. They might not look like much, but collectors might be willing to pay hundreds ...

An expert is advising coin enthusiasts to keep an eye out for two specific £2 coins that could be worth a significant amount more than their nominal value due to rare errors. These coins, if found ...

The rare coin, which has previously been sold for more than £500, is still believed to be in circulation ...