Diane Bath, 62, discovered the rare coin on September 16 when loading change into the till at the post office where she worked.
A £1 coin found by a shopkeeper has fetched a whopping £1,250 at auction.
Diane Bath, 62, discovered the rare coin on September 16 when loading change into the till at the post office where she worked.
The batch of King Charles 2023 £1 coins had been delivered straight from the Royal Mint.
But Diane and her colleague quickly realised that it looked "unusual".
It turned out the coin had an ultra-rare, never-seen-before error - it had accidentally been produced in the wrong metal.
The yellow-coloured £1 was brass, rather than the usual two-tone nickel.
After consulting an expert, Diane was told it could fetch a huge £600 at auction - 600 times its usual value.
But, after taking the coin to an auction at Ryedale Auctioneers in Yorkshire on October 18, Diane was met with yet another shock, as it ended up selling for more than twice its estimated worth - at £1,250.
The ecstatic Diane said: "The first bid came in at £400 then it just kept shooting up to £500 then £570.
"Finally, it was a lady on the phone who placed the winning bid for £1,250.
"Everybody clapped and it was such an exciting day.
"We're thrilled to bits that it's gone to someone who really wants it."
It comes as a bag of rare 50p coins was sold for an enormous £17,000 at auction, following a bidding war.
And a £2 coin with a Captain James Cook design sold for £57 on eBay.
The above is the detailed content of A SIMPLE £1 coin found by a shopkeeper has fetched a whopping £1,250 at auction. For more information, please follow other related articles on the PHP Chinese website!