Terry O'Neill Viewing: Statesmen Gallery "Nelson Mandela, photographed at his 90th birthday celebrations in Hyde Park June 27th, 2008Limited HM Queen Elizabeth 11 and HRH Prince Philip HM Queen Elizabeth 11 HM Queen Elizabeth 11 HRH Prince Philip Duke of Edinburgh Nelson Mandela and his wife Graça Machel during his 90th birthday celebrations in Hyde Park on June Nelson Mandela reading newspaper Nelson Mandela, photographed at his 90th birthday celebrations in Hyde Park on June 27th, 2008 Winston Churchill leaving hospital in London, 1962