In 2008 to commemorate the Last of the Emblems of Britain Coinage, the Royal Mint released a very Limited Issue Portcullis 1p One Pence Platinum Proof Coin struck in solid fine .999 Platinum and Certified Slabbed and Graded by PCGS as PR69 DCAM.
The reverse of the Platinum Proof 1p One Pence Coin features the familiar portcullis design with chains royally crowned, designed by Christopher Ironside.
The obverse design features Ian Rank Broadley's portrait of Her Majesty Queen Elizabeth II.
These legal tender coins have been struck to proof quality using specially prepared dies and highly polished blanks.