A tourist boat passes a giant canvas along the River Thames of a photograph showing Britain's Royal Family...
A tourist boat passes a giant canvas along the River Thames of a photograph showing Britain's Royal Family during the 1977 Silver Jubilee, London May 25, 2012. A detail of the photograph, shot by an unknown photographer shows (L-R) Prince Edward, Prince Andrew, Louis Mountbatten, Queen Elizabeth, Prince Philip, and Mark Phillips, on the balcony of Buckingham Palace. Queen Elizabeth will mark her Diamond Jubilee by travelling in a 1,000-boat regatta on the river on June 3. REUTERS/Suzanne Plunkett (BRITAIN - Tags: ROYALS SOCIETY ENTERTAINMENT)