Sheet number: [57d SE2]. "Edition 2, cancelling all previous issues." Trenches to 10th October 1916. "1st Printing Coy R.E. 5th Section (201)." "Contours from captured German Map." Area of Edmund Blunden's evening reconnaissance of 13 November 1916. Detail, grid and contours black; German trenches & names red., Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC19; envelope_number: 616, Manuscript on face: British line & posts NE of Schwaben Redoubt. Manuscript on reverse: title of map & name of original user (indecipherable).