We are all being encouraged to check our change after a rare 20p coin sold for 485 times its face value this week. The 20p piece is a “mule” coin dating from 2008 and was minted without a date on the ...

An example of a rare undated 20p mule coin (Image: eBay/Getty/Vandervelden) Prior to November of that year, the date on 20p coins would be found on the tail side. However, the Royal Mint switched ...

Prior to November of that year, the date on 20p coins would be found on the tail side. However, the Royal Mint switched ... the past 50 years of British history. The rarest coins tend to be ...