Series Number Id: GSGS 3389. Sheet number: part of sheet 51. Battle of Arras preparations; trench, target and hostile battery map 19-3-17. "3rd Field Survey Co. R.E (1456)". "Ordnance Survey, February 1917." Grey base map; German trenches and names red; British trenches to depth of 300 yards blue. Overprint in dark blue: "Target Map" [and hostile battery] with artillery details. Overprint in green: [enemy organisation] reference; shows railways, roads and tracks chiefly used, and more., Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC21; envelope_number: 669.
Series Number Id: GSGS 3389. Sheet number: part of sheet 51. Battle of Arras preparations; trench target and hostile battery map 5-3-17. "3rd Field Survey Coy R.E. (1403)." "Ordnance Survey, February 1917." Grey base map. German trenches and names red; British trenches to depth of 300 yards blue. Overprint in purple: [artillery intelligence], [target and hostile battery], artillery details. Overprint in green: [enemy organisation] reference; railways, roads and tracks chiefly used, and more., Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC21; envelope_number: 668.
Series Number Id: GSGS 3390. Sheet number: part of sheet 51. Battle of Arras preparations; trench, target and hostile battery map. "3rd Field Survey Co. RE. (1404)". "Ordnance Survey, February 1917." Grey base map; German trenches and names red; British trenches to depth of 300 yards blue. Overprint in dark blue-purple: "Artillery" [target and hostile battery reference] with artillery details. Overprint in green: [Enemy Organisation] Reference, showing railways, roads and tracks chiefly used, and more., Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC24; envelope_number: 731.
Series Number Id: UNKNOWN. Sheet number: parts of 57d SE, 62d NE. Albert Area: heavy artillery target map, before the Battle of Amiens, 1918. "Edition 1." "Corps heavy artillery, target map (ed. 2)". "Trenches corrected from information received up to 18-6-18". "Field Survey Co. R.E. (3924) 1-7-18". Grey base with yellow-ochre contours. British trenches with names in blue; German trenches in red. Target information in blue and green., Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC16; envelope_number: 445.
Series Number Id: UNKNOWN. Sheet number: Part of Sheet 36. Auchy-Loos Area; trench map, harassing fire and hostile batteries map, 1917. "Trenches corrected to 26-8-17." "1st Field Survey Co., R.E. 2363 [numbers crossed out and overprinted in green] 5005." German trenches and names red; British trenches and names to depth of 600 yards blue. Shows [enemy battery] positions, active and inactive, between 1-8-17 and 29-8-17 in black., WW1 Trench Map Collection: Box PC20, Envelope 642.
Series Number Id: UNKNOWN. Sheet number: part of Sheet 51. East of Vimy Ridge, artillery map. "[German] trenches corrected to 12-5-17." "[Enemy battery] positions corrected to 15-5-17" in black overprint. "1st Field Survey Co. R.E. 2167 [numbers crossed out and replaced with black overprint] 2211." Overprint in green, blue and yellow showing enemy batteries, targets, harassing fire and more. Detail, grid and contours grey; German trenches red., Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC16; envelope_number: 430.
Series Number Id: UNKNOWN. Sheet number: parts of sheet 57c NE, SE and 57b NW, SW. Edition number: 1. "Special sheet." Trench map and enemy organisation map. "Enemy organisation 15-9-17" in black. "Detail and trenches revised to 5-9-17" in red. "Approximate British Front Line 15-9-17" in black. Detail, contours and grid grey. "Field Survey Co., 10037"., Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC24; envelope_number: 725.
Series Number Id: UNKNOWN. Sheet number: part of Sheet 51. Canal du Nord, Hindenburg Line and Marquion Line, 1918; trench, counter-battery and Intelligence target map. "Trenches corrected to 22-9-18." "[1st] Field Survey Battn 6941 (numbers crossed out and replaced with red overprint) 6961." Detail and grid grey; contours ochre; pale blue water. Approximate British Front Line in dark blue. Shows all trenches in blue, including the German positions of the Hindenburg Line, Canal du Nord Line and Marquion Line., Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC27; envelope_number: 786.
Series Number Id: UNKNOWN. Sheet number: part of Sheet 28. Canal-Pilckem-Poelcappelle Area. 'J' [XIV] Corps Area. "J Corps Topo Section no. 247". "Revised 8-10-17". Detail (roads, canal, streams) and grid black; light railways green (including those under construction). Used by Major J. C. Thomson, OC 20th Siege Battery., Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC18; envelope_number: 554.
Series Number Id: GSGS 3488. Sheet number: 51b and 57c. Battle of Arras, enemy organisation and expoitation map, 1917. The regular sheet 51b with a 4,000-yard deep strip added from sheet 57c (the sheet to the south). "Ordnance Survey, March, 1917." Detail and grid grey; contours brown; water blue. Overprinted with enemy organisation, presumably intended primarily for air, cavalry and tank use, showing railways, headquarters, main defence lines, possible inundations, cuttings, earthworks, embankments and bridges. Enemy organisation green. Principal German trench lines, but not all trenches, in red., Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC15; envelope_number: 409.
Series Number Id: UNKNOWN. Sheet number: part of sheets 62c NE & SE, 62b NW & NE, 62b SW & SE. Edition number: 1a. Storming the Hindenburg Line 1918. "Trenches corrected from information received up to 19-9-18". "Field Survey BN., R.E. (4360) 21-9-18". "Information from captured German maps printed in red." German trenches blue; British trenches red. Situation during the final advance, after the Battle of Havrincourt and Épehy (12-18 September 1918), and before the breaking of the Hindenburg Line and the crossing of the St. Quentin Canal on 28 September. Manuscript on reverse: C.E. Hickman., Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC14; envelope_number: 386.
Series Number Id: GSGS 2742; Sheet number: 57c NW; Edition number: 9a(local), Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC13; envelope_number: 357, Manuscript: red & blue crayon layer tints for high ground NE of Bapaume, & markings for Bty and advance past Bapaume; manuscript on reverse: E.H.H.