"Rest and Recreation in the British Army on the Western Front, 1914-1918" Horse show organised by the XIII British Corps at Ecoivres, 20 June 1917. Brigadier General Richard A. Colley Wellesley, GOC Royal Artillery, 13th Corps, judging the special competition. Regulation were that both driver and horses must have been out since August 1914. Also neither men nor horses may have been sick or evacuated.