A TINY unremarkable error on your 20p coin makes it worth 485 times its face value as a fiery eBay bidding war reveals. One ...
This rare coin is known as a 'mule' 20p as it has no date on either side - and it is thought there could be thousands more in ...
One mistake made for the first time in 300 years caused 250,000 "mule" coins to become a collectors item, with the mistake ...
Use precise geolocation data and actively scan device characteristics for identification. This is done to store and access ...
"This issue impacted less than 250,000 coins out of the 136 million 20p pieces minted in 2008 and was a result of pairing the old obverse, or heads side, with the new reverse, or tails side design ...
A very specific batch of 20 pence pieces are hot property for coin collectors across the UK, with some eBay sellers managing ...