As it is so unusual it has meant the coin has been dubbed the "holy grail" of change collecting making it much sought after. The 20p coin was highlighted on Instagram by Coin Collecting Wizard.

The RWB Auctions staff member told The BBC: '20p coins are a fixture in our change ... produced for the 2012 London Olympics - depicting a cartoon high-jumper drawn by a nine-year-old prior ...

A TINY mistake on your usual 20p coin could make it a whopping 350 times more valuable. You will need to look out for one small detail if you want to mint some extra cash. Coins become more ...

This rare 20p coin released into circulation without a date could be worth hundreds of pounds. Coin Collecting Wizard shares informative videos on TikTok informing Brits about rare or collectable ...

That's because you may have a rare coin lurking among the old silvers and coppers. There are 20p coins that could be worth £50 lurking in Brits' change – but do you have one? TikToker @ ...

We are all being urged to check our change after a rare Royal Mint 20p coin sold for 450 times its face value on eBay. The 20p piece is a rare “mule” coin dating from 2008, and fetched £90 at ...

A demonstration of the different coin combinations which make 20p. Several coin values are shown before they morph into different combinations of coins which make up the same value, helping ...

A demonstration of the different coin combinations which make 20p. Several coin values are shown before they morph into different combinations of coins which make up the same value, helping ...