
Experts said a Royal Mint blunder - where no date had been printed on a batch of 20p coins - meant they were worth £50 each.
But not content with 250 TIMES the face value people who found the rare coins are trying to sell them on eBay.
Several are hoping people will shell out prices of £5,000 to 'buy it now' but one which started out at 99p yesterday sold for a massive £7,000.
Let's hope the person buying it has checked for the rare coins in the money they are using to pay for it.
A spokesperson for the Royal Mint said: "Last year there was an incredibly unusual lapse in the strict quality control at the Royal Mint.
"A batch of 20p coins were issued with mis-matched sides. The result is a number of 20p coins have entered circulation without a date."