Series Number Id: [GSGS 3389]. Sheet number: part of sheet 51. Edition number: [2]. Cropped sheet. "Army situation map, 8 p.m., [time crossed out and overprinted with] 6-30 p.m., 9-4-17." German trenches and names red; British trenches to depth of 300 yards blue. Overprint includes: Reference to organisation and artillery. Includes typescript note from Brig.-Gen. H.H. Tudor, C.R.A. 9th Division, "To O.C. "Maps" 3rd : Army [Lt.-Col. H. Winterbotham RE]"., Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC20; envelope_number: 645.
Series Number Id: GSGS 3274. Sheet number: part of sheet 28. Black base map, photographically reproduced from the French 1:80,000 map sheets of the Somme area. Shows "original line" and lines on July 7th, 14th, 21st, and 31st, as well as "approximate lines" (shown pecked); British lines are in red overprint and French lines in blue overprint. Covers the whole area of the Somme battlefield, including Albert, Bapaume and Péronne, from Hebuterne in the north to Rouvroy-en-Santerre in the south, and from Bouzincourt in the west to Fins in the east., Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC20; envelope_number: 629.
Series Number Id: GSGS 3456. Sheet number: part of sheet 57. Combined situation map, German retirement and Battle of Arras, 1917. Title in blue overprint. Grey detail; water blue. In blue overprint: British Front Line evening of 12-4-17 in solid blue; British Front Line evening of 16-3-17 in pecked blue., Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC19; envelope_number: 583.
Series Number Id: GSGS 3458. Sheet number: part of Sheet 36. Battles of Vimy Ridge and Arras, First Army situation map 10 April 1917. "Ordnance Survey, March, 1917." Detail, contours and squaring grey. Overprint in blue: First Army Front, Situation at 4.0 p.m. 10/4/17; shows original Front Line pecked blue, Advanced Line (on east slope of Hill 145 and Vimy Ridge) solid blue line, patrols (east of Farbus) large blue dots. Also in blue overprint: 1st Field Survey Co., R.E. 2066., WW1 Trench Map Collection: Box PC16, Envelope 446.
Series Number Id: UNKNOWN. Sheet number: parts of sheets 36 and 57. [First Army Front], First Army situation map, 27 August [1918]. Title in red overprint. "[1st] Field Survey Battn. R.E. 6788 [numbers crossed out with red overprint and followed with] 6794". Grey gridded base map (enlarged 1:40,000). British Line west of Lens and Bapaume and east of Arras shown in red for 20th, 26th, 27th August. Scale of miles and kilometres in right margin of base map., Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC16; envelope_number: 461.
Series Number Id: UNKNOWN. Sheet number: parts of sheet 57 and 62. Fourth Army situation map, German retirement and Hindenburg Line, 31 May 1917. Portion of title lacking due to cropped right extent of map sheet. "4th Field Survey Coy, R.E. (1475)." Grey detail and squaring; blue water; black overprint. Key to explosions and fires in black overprint. Many fires and an explosion shown in St Quentin. Main German defence lines shown in black, including Le Catelet - Nauroy Line, Beaurevoir Line, and Walincourt - Audigny Line., Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC19; envelope_number: 581.
Series Number Id: UNKNOWN. Sheet number: 11 and 12. Air intelligence map, Battle of Cambrai, 1917. Overprint on composite of two small sheets (pinned together) of grey squared base. Title in blue overprint. "[3rd] Field Survey Coy., (10021)". "B.I. XIIIth Wing 6 PM 23.11.17" in blue overprint. "Original British Front Line 19-11-17" shown and also the Cambrai Salient Line, including Bourlon and Bourlon Wood, as at 6 p.m. 23-11-17. Manuscript on verso in pencil: Cambrai Nov 1917., Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC19; envelope_number: 592.
Series Number Id: GSGS 2840. Sheet number: part of sheet 62. At head of map, "Reprint 10,000. 14-8-17." "Ordnance Survey, June, 1917." Grey and blue base map with 1:40,000 sheetlines and squaring system overprint in green., Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC16; envelope_number: 427.
Series Number Id: UNKNOWN. Sheet number: part of sheet 51. "German trenches as far as known up to 4 pm 26:4:17 shewn in red. O=mound". "British trenches in blue. Hostile activity shewn in blue". "Situation (our troops) as far as known 6.0 pm 26.4.17 shewn by blue line (approx)". Detail, grid and contours grey, German trenches and names red; British trenches, names and intelligence blue. Uganda Copse crudely deleted from background., Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC19; envelope_number: 574.
Series Number Id: UNKNOWN. Sheet number: part of sheet 51. Battle of Arras. "German trenches as far as known up to 4 pm 25-4-17 shewn in red. O=mound". "British in blue. Hostile activity shewn in blue". "Situation (our troops) as far as known 6.0 pm 25:4:17 shewn by blue line (approx)". Detail, grid and contours grey; German trenches and names red; British trenches, names and intelligence blue. Blue note by Uganda Copse: Copse does not exist., Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC19; envelope_number: 573.
Series Number Id: UNKNOWN. Sheet number: part of sheet 51. Title statement extremely faint. Situation map [no. 119?]. Extremely faint red printing: "German trenches as far as known up to 4 pm 27.4.17 shewn in red". "British trenches in blue. Hostile activity shewn in blue". "Situation (our troops) as far as known 6.0 pm 27.4.17 shewn by blue line (approx)". Detail, grid and contours grey; German trenches and names red; British trenches, names and intelligence blue., Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC19; envelope_number: 575.
"IX Corps Topo Sec. 9.C.T.S.4." Detail and grid grey; German trenches and MGs red; British trenches blue. Printed in field on Ellam duplicator. Situation at end of second day of Messines battle., Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC17; envelope_number: 473
Sheet number: [Part of sheet 28]. In upper margin: Q.4. "Situation 7 p.m. 26.9.17, unsuccessful counter attacks by the 100th Res. Grens shewn thus - [purple arrow]". "[5th] Field Survey Coy., R.E. (2525)". "M [above crossed flags (?)] Corps Topo Section No. 101 26.9.17." "Approx. Corps Front Line 25.9.17 [and] Front Line 26.9.17." [Trenches to September 1917]. German trenches and names red; overprint purple., Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC17; envelope_number: 504
Series Number Id: UNKNOWN. Edition number: 1. At head of map: O.13-D.15. "Field Survey Co. R.E. (1337) 31-7-17". "Trenches corrected from information received up to 3-7-17." Grey detail and grid (without contours). German trenches in red. Overprinted by Corps Topo Section in purple with XIV Corps and Divisional boundaries (50th (Northumbrian) Division in centre) and tracks: Clarges Street, Hunter Street, Railway Street, Langemarck Road, Track 'A', Track 'B', apparently for the attack of 26 October towards the end of the Third Ypres battle. Manuscript pencil markings showing microphone bases of 'Q' and 'R' Sound Ranging Sections., Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC20; envelope_number: 641.