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 ...

The Royal Mint 50p coin in question was issued in 2017, and nobody knows exactly how many of the versions with an error are in circulation. As a result, they are considered “extremely rare” with some ...

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 ...