In the video, they held up the coin to the camera and urged viewers to check the bottom right corner. They said it is worth checking for an "undated" 20p in your purse, just in case. The expert ...

However the coin's buyer may have got a bargain, as another undated 20p coin was sold on eBay in July for £70 - 350 times its face value. According to the Royal Mint, less than 250,000 of the 136 ...

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He continued: "Normally, 20p coins have the date on the back, but if you check and there's no date on either side, you might be holding the rare one. "These undated 20ps are rare but not ...

The coin collector highlighted just how sought-after these rarities are, explaining, "Considered by many as one of the holy grails of UK change collecting, the undated 20p is always at the top of ...

The rare 20p coin is estimated to now be worth 325 times its original face value making it one of the most sought-after pieces. The coin grabbing collectors' attention is the undated 20p which has ...

"The undated 20p is undoubtedly at the top of most serious collectors list. In 2008, an unknown number 20p coins were released into circulation, without a date on either the obverse or the reverse." ...

The video then reveals, through a female voiceover, that this coin is known as the undated 20p, often referred to as the 'holy grail' of change. It's a must-have for serious collectors.

The coin enthusiast also highlighted the significant demand for these rare pieces: "Considered by many as one of the holy grails of UK change collecting, the undated 20p is always at the top of ...

What makes these 20p coins so valuable is that they are undated. This means they were the first undated British coins to enter circulation in over three hundred years. This oddity occurred due to ...

someone's sharp eye caught one such undated 20p coin, and they promptly put it up for bids on eBay as "RARE UNDATED UK 20 PENCE COIN, MINT ERROR K30". Kickstarting the auction with a modest ...