Soldiers Of The Queen March Past Their Sovereign- The impressive scenes as the Scarlet-clad ranks march past the Queen on the Horse guards parade to-day. The Queen, riding side saddle on police horse Winston, attended the first Trooping the Colour of her reign on horse Guards parade, London, to-day (Thursday). The ceremony celebration her official birthday. The Queen, wearing tunic of colonel-in-chief of the Scots Guards, and on her tricorne hat the silver cap badge of the Scots Guards presented to her yesterday. June 5, 1952. (Photo by Reuterphoto).