Queen Mary Wheeled To See "Coronation Stone" -- Queen Mary, 84, is pictured as she inspects replicas of the coronation stone and chair from a wheel chair at London's British Industries Fair, at earl's court, today May 1. Earlier in her tour of the exhibits Queen Mary walked. Three of her grandchildren, the young Duke of Kent, his brother Prince Michael, and his sister Princess Alexandra, walked beside of Kent and the Duke and Duchess of Gloucester. The king and Queen also toured the Exhibition. Pointing out some of the features of the reproductions I. C. B. Horley, Managing Director of Tibbenham's Furniture Company. May 16, 1951. (Photo by Associated Press Photo).