Sheet number: [36 SW2]. "Trenches corrected to 27-7-17". Overprint in blue in lower, right corner: Situation as reported by Divisions [British Front Line] 9 pm 15-8-17. "1st Field Survey Coy., R.E. 2458." Detail, grid and contours grey; German trenches & names red; old British front line grey; new British front line & posts blue. The situation immediately after the capture of Hill 70 by the Canadians. Used by Major J.C. Thomson MC (OC 20th Siege Battery, 8-inch hows)., Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC21; envelope_number: 654