One of the rarest is the Kew’s Garden 50p, which was designed to mark the 250th anniversary of the gardens in 2009. Only 210,000 coins were ever minted with this design. The Kew Gardens 50p sells for ...

We are all being urged to check our change for an “extremely rare” 50p coin with an error that makes it incredibly valuable. The Royal Mint 50p coin in question was issued in 2017, and nobody knows ...

The 50 pence piece has become the most valued and collected ... The rarest coins tend to be of the greatest value, with the mintage (number of coins with each design made) being the fundamental ...