A rare £2 coin featuring a design error could be worth up to £500.
The coin, launched to mark the centenary of the First World War, is missing the words 'Two Pounds' from the head side.
It could be worth a mint if you happen to find one, reports the Mirror.
The 2014 coin was launched seven years ago to mark 100 years since the start of the First World War.
It features an image of Lord Kitchener, a prominent British war figure who appeared on government propaganda posters.
Only the version with the missing wording is likely to be worth more than its face value.
It isn’t clear exactly how many of these could be in circulation, but the first of its kind sold at a Lockdales auction in March 2020 for £500.
Writing on Facebook, experts at Coin Hunter said: "Check your coins that feature Lord Kitchener.
"If the heads side does not show 'TWO POUNDS' - you have an error that appears to be very rare."
If you suspect you may have a rare coin, you can ask the Royal Mint to take a look and check if it is real.
Websites and Facebook groups from change experts like Coin Hunter can also help you work out if a coin is the real deal or not.
Colin Bellamy from Coin Hunter said: “Keep an eye out for coin errors when you receive change – look for anything different or unexpected.
“If you have a coin and you’re not sure if it’s a mint error, join a Facebook coin group such as Coin Errors and upload a picture to find out if the coin is worth more than its face value.”
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