People have been urged to check their wallets for a rare 50p coin - which is said to now be worth around £255.
The coin was released in 2009 and features an illustration of an athlete performing the high jump ahead of the 2012 Summer Olympics in London.
It was designed by nine-year-old Florence Jackson as part of a Blue Peter competition.
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While more than 20,000 of the coins were minted, they were not officially put into circulation - however, many of the coins managed to enter everyday transaction, the Mirror reports.
The coins had originally sold for £1.09, but many people on eBay are now cashing in on the rare coin.
One lucky seller has just received a huge £225.01 for theirs, after listing it on the online auction site. The sought-after coin attracted 17 different bids, with the sale price jumping considerably after starting at £9.99.
The item, which sold on June 19, was listed as a "rare uncirculated Blue Peter winner's edition 50p coin pack 2009".
If you come across one of these coins, the first thing you should do is check the year on it. This is because a second edition of the coin was minted in 2011.
About 2.2million coins were made and released into circulation, meaning these will not be worth nearly as much.
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