© ITN

Prince Charles at school sports day; ENGLAND: London: Knightsbridge: Hill House School: EXT Queen Elizabeth II, Prince Philip, Duke of Edinburgh and Princess Anne (later Princess Royal) arriving Prince Charles (later Prince of Wales) introducing Queen and Duke to schoolchildren Various shots of Prince Charles taking part in school field day events and Royals watching sporting display - cricket, climbing and jumping, running races, canon pulling, monkey bars, rope tug of war Queen speaking to schoolmaster (headmaster) as departing with Charles and Anne