2021 NGC Graded PF70 UC FR Plesiosaurus Silver Proof Colour 50p Coin Royal Mint. NGC Graded at the highest grade possible PF70 Ultra Cameo with First Releases label. Only 11 coins Worldwide have achieved this very high grade. Build your collection of fossil reptile coins.Follows on from the first popular series celebrating Tales of the Earth. The use of colour brings the Plesiosaurus design to life. The coin design and packaging illustrations are based on scientifically accurate reconstructions. Presented in a beautiful acrylic display block. Finished to the finest Proof standard.