Two coins with 'rare' detail worth more than face value - with one selling for £750

Finding a coin which looks off could be a sign of something remarkable.

Rare have been making headlines, with some worth hundreds or thousands more than their face value.

According to user @CoinCollectingWizard, certain coins could be hiding in your pocket, including one that sold for £205 on eBay and another believed to be worth £750.

The user shared with his 210,500 followers: "Have you ever found a coin that just doesn't look right? It could be an error!" He highlighted two coins, starting with the error £1, which features the new £1 design on an old £1 coin base.

This error occurred when the round £1 was replaced with the 12-sided coin in 2017. Meanwhile, a bronze 20p coin also caused a stir online, with experts claiming it sold for nearly £800.

The user explained: "One mistake collectors want to get their hands on is this normally silver 20p coin in bronze.

"This happened after being struck onto the metal normally struck for a 1p coin that had slipped into the wrong batch. This error has been confirmed by the Royal Mint as an extremely sought-after minting error.

"These are super rare and are not specific to any year. We've had a look online to see how much these error coins sell for but it doesn't look like there are any currently available on sale. But experts have previously valued these coins at £750 each."

Sometimes, rare coins can be overlooked in your pocket change, but the reality is so much more different. The value of a special coin can depend on a number of factors, from its mintage to the history behind it.

If you've ever stumbled upon a gem in your stash and wondered if it's worth a fortune, it's advisable to consult a professional who can provide a valuation. You never know when a penny coin in your pocket could fetch six figures...