"1st Printing Co., R.E. G.H.Q (381)". [Early 1915 -from approximately Dec.1914/Jan.1915]. Detail black; wood and trees green; road fill and contours sienna. (Revised) squaring in red, at angle to sheetlines. British and German trenches shown in manuscript; at this early stage of the war it was not yet the practise to overprint the trenches., Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC17; envelope_number: 499
