A rare 50p coin is worth more than 90 times its face value, as it has a key characteristic or 'error' and has significantly changed Queen Elizabeth's face Some 50p coins feature an error which can be worth more (Image: PA)

Certain coins can be more thrilling than others, especially when they hold significant value . From the UK's rarest one penny coin to a highly valuable piece worth thousands, collectors are always encouraging Brits to scrutinise their change for any hidden treasures. ‌

Instagram user @CoinCollectingWizard, who boasts 30,900 followers, regularly shares the designs to keep an eye out for. Recently, he alerted his fans to a 50p coin with an 'unusual mark' that could make it worth over 90 times its face value. ‌

So, do you have this coin? The 2017 Sir Is

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