In 2009 to celebrate the 40th Anniversary of the first UK 50p Fifty Pence Coin, the Royal Mint released a very special Limited Issue Accession to the EEC Piedfort 50p Fifty Pence Gold Proof Coin struck in solid 22 Carat Gold Certified Slabbed and Graded by NGC as PF69 Ultra Cameo.
The coin weighs 31.10 grams and is double the thickness of its normal counterpart and has a strict mintage of only 40 worldwide and is the smallest issue ever of any United Kingdom coin.