"2nd Army. Sheet 3." On upper, left margin : Part of sheet 28. "Trenches corrected to 11th Nov. 1915. 1st Printing Co., R.E (2) 585." "O.S.O. 1915." Detail, grid and contours grey; German trenches red; 2-figure coordinates, and additional farm names in British and German areas blue., Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC18; envelope_number: 536, Manuscript on reverse: St Jean.