[Vitry-en-Artois, east of Arras : final advance 1918, trench, CB & harassing fire map]
Series Number Id: [GSGS 2742]. 51bNW & 51bNE combined sheet. [1st] FSB 6805, base map: detail & grid grey, water pale blue, contours yellow. O/p red 6874. Trenches corrected to 13th September 1918. British trenches & names in red, German trenches & names in blue. British advanced posts shown thus [large red dots]. British front runs: W of Arleux and Oppy; E of Gavrelle - Greenland Hill; W of Plouvain; E of Pelves. O/p black: 6963 Harassing Map. [Enemy Artillery] Positions considered occupied, unoccupied, 31-8-18. Linen-backed, not printed on reverse. Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC27; envelope_number: 784.