Series Number Id: [GSGS 2742]. Sheet number: 51a SE. Edition number: 3a. "Trenches revised from information received to 12-10-18". "Enemy organisation 12-10-18." "Field Survey Bn. (10869), 14-10-18"., Detail and grid grey; contours ochre; trenches and Enemy Organisation red., Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC28; envelope_number: 828.
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