Trooping The Colour - Princess Elizabeth wearing her uniform as Colonel of the Grenadier Guards, and the Duke of Gloucester, as Colonel of the Scots guards, watching the march past as the King takes the salute outside Buckingham palace after the ceremony. For the first time since the war the Guards paraded in full ceremonial uniform for the picturesque ceremony of Trooping the Colour on the Horse Guards parade, London. H.M. The King inspected the parade while seated in an open landau and a chair was provided for him on the dais of the saluting base. June 9, 1949. (Photo by Sports & General Press Agency Limited).