A 20p coin has sold for an eye-watering £97 on eBay because of a massive error in its design. This rare coin has no date printed on either side. It is known as a ...

This anomaly affected less than 250,000 of the 136 million 20p coins minted that year, due to an old obverse (heads side) being mistakenly matched with a new reverse (tails side) design ...