To celebrate the fortieth anniversary of this momentous occasion the Government of St Helena has issued this commemorative silver crown, minted by the Royal Mint UK. Struck in sterling 9.925) silver in Proof. It weighs 28.28 grams, measures 38.61 mm, with 10,000 pieces struck.he reverse of this exquisite coin, designed by Norman Sillman and modelled by Geoffrey Colley, features Her majesty the Queen crowned and seated on King Edward's chair and supported by two of her bishops. She holds in her right hand the Royal Sceptre with the Cross and in her left hand, the Sceptre with the Dove. The obverse bears the elegant portrait of Her Majesty the Queen by Raphael Maklouf, surrounded by the inscription 'Elizabeth II St. Helena + Ascension' and the denominational value '2 pounds'. he reverse of this exquisite coin, designed by Norman Sillman and modelled by Geoffrey Colley, features Her majesty the Queen crowned and seated on King Edward's chair and supported by two of her bishops. She holds in her right hand the Royal Sceptre with the Cross and in her left hand, the Sceptre with the Dove. The obverse bears the elegant portrait of Her Majesty the Queen by Raphael Maklouf, surrounded by the inscription 'Elizabeth II St. Helena + Ascension' and the denominational value '2 pounds'.