2018 Sir Isaac Newton Strike Your Own 50p

THESE ARE NO NO LONGER AVAILABLE AT THE ROYAL MINT EXPERIENCE WITH A MINTAGE OF APROX 20000 POSSIBLY THE RAREST EVER 50 PENCE 

Super rare issue, 2018 coins in 2017 card 

Brilliant Uncirculated Coin

This popular iconic design will not enter circulation. As a result mintage figures will be lower than the Kew Gardens, only available from the royal mint tour