21st December 1929: Princess Elizabeth on the platform at King's Cross station, about to depart with her Royal grandparents for Christmas holidays at Sandringham. (Photo by Edward G. Malindine/Topical Press Agency/Getty Images)
21st December 1929: Princess Elizabeth on the platform at King's Cross station, about to depart with her Royal grandparents for Christmas holidays at Sandringham. (Photo by Edward G. Malindine/Topical Press Agency/Getty Images)