File - Britain's King George VI and Queen Elizabeth appear with their daughters Princess Elizabeth, left and Princess Margaret, on the balcony of Buckingham Palace, London, June 22, 1939 after their return from their Canadian tour. The balcony appearance is the centerpiece of almost all royal celebrations in Britain, a chance for the public to catch a glimpse of the family assembled for a grand photo to mark weddings, coronations and jubilees. (AP Photo, File)