In 2009 to celebrate the London 2012 Olympic Games, the Royal Mint released a very Limited Issue Isaac Newton £5 Five Pound Silver Proof Crown Coin struck in solid .925 Sterling Silver.
The reverse celebrates Isaac Newton and the words "Make not your thoughts your prisons" while the obverse design is the stunning portrait of Her Majesty Queen Elizabeth II by Ian Rank Broadley.
These legal tender coins have been struck to proof quality using specially prepared dies and highly polished blanks.