Sheet number: [Part of sheet 28]. Edition number: 2. In upper margin: R.1. [Trenches to 21-8-17]. "[5th] Field Survey Coy., R.E. (1,519)". Sheetlines at angle to grid north. Detail, grid and contours grey; German trenches and names, batteries and blockhouses red; "approximate British Front Line 21-8-17" pecked red. Map on verso: Plan of camp H.Q. Corps, [1917?] - PC0579B (macrepo 71417)., Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC21; envelope_number: 649
