Queen Elizabeth, Princess Elizabeth, and Princess Margaret attend concert in London

WS EXT building, double-decker bus drives by / MS Royal car arrives, crowd on side of street watching / CU Princess Margaret, Queen Elizabeth, and Princess Elizabeth getting out of car, Queen Elizabeth shaking hands with man / Queen and princesses enter building / INT Queen with bouquet followed by princesses with bouquets in hands walking to their seats inside / WS Queen Elizabeth, princesses and orchestra / orchestra playing / repeat shots of Queen Elizabeth with bouquet followed by princesses with bouquets in hands walking to their seats inside / WS Queen Elizabeth, princesses and orchestra / orchestra playing / CU Queen and princesses at concert / CU Dr. Malcolm Sargent, conductor, conducting / MS Princess Elizabeth applauding while Queen helps Princess Margaret with bouquet / Note: exact day not known