[Second] Army area map, no. 6 : Army route plan, 12-8-18
Series Number Id: UNKNOWN. Sheet number: part of sheet 36. Secret, Second Army route plan, Ypres Salient, August 1918. "Secret" in black overprint at head of map. "[4th] Field Survey Coy, R.E. (8648) 12-4-18 [numbers stroked out with black overprint and followed with] (9506) 15-8-18." Grey base map with olive-green squaring. Overprint red, green, and black showing Army routes, Corps routes and other routes respectively., Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC27; envelope_number: 796.