Sheet number: [Part of sheet 28]. Edition number: 4. "Trenches corrected from information received up to 24-9-17." "[5th] Field Survey Co. R.E. (2614) 23-9-17". Detail, grid and contours grey; German trenches and names, batteries, strong-points etc. red; concrete works marked "c"., Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC14; envelope_number: 389, Manuscript on face: cross in circle E of Keerselare, S of Flora Cot. This map belonged to W. Ivor Grantham (5th Royal Sussex?).