Series Number Id: GSGS 3627 [numbers crossed out with black overprint]. Sheet number: part of sheet 28 and 36. Second Army traffic map, Third Battle of Ypres. "[2nd] F.S. Co. 1377. 27-10-17" in black overprint. "Ordnance Survey, October, 1917." Grey detail; blue water; green squaring; overprint in black and red. "Approximate Army Boundary" chain-dotted black. Roads in black and red., Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC19; envelope_number: 593.
Series Number Id: UNKNOWN. In upper margin: Part of sheet 5A (Belgium), sheet 1. Fifth Army traffic circuits before Third Battle of Ypres, 1917. "5th Field Survey Co. R.E. (1,115) 20-6-17." Grey base map; blue and red overprint. Shows whole of Fifth and Second Army areas from north of Ypres to south of Armentieres, and west of Cassel. No route east of Ypres shown except for circuit around Zillebeke Lake., Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC19; envelope_number: 590.
Series Number Id: UNKNOWN. In upper margin: Part of sheet 5A (Belgium), sheet 1. Fifth Army traffic circuits before Third Battle of Ypres, 1917. "5th Field Survey Co. R.E. (1,115) 20-6-17 [numbers in brackets stroked out with red overprint and replaced with] (124,2) [c. 24-7-17]". Grey base map; overprint in red and blue. Shows whole of Fifth and Second Army areas from north of Ypres to south of Armentières, and west of Cassel.
Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC19; envelope_number: 591.
Series Number Id: GSGS 3262. Sheet number: 3. Fifth Army motor traffic circuits, end of Somme Battle, January 1917. "Edition 3. Corrected to 18-1-17" in blue overprint. "Ordnance Survey, January, 1917." Grey detail; overprint in blue and red. Shows whole of Fifty Army and adjoining areas. Collector's stamp: From Major J. C. Thomson MC, OC 20th Siege Battery RGA, 8-inch Howitzers. Printed slip (torn) glued to top left margin: Corrections to Fifth Army Motor [Traffic Circuits]., Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC23; envelope_number: 709.
Series Number Id: UNKNOWN. Sheet number: parts of sheets 27 and 36. Fourth Army motor traffic circuits, Ypres Salient, January 1918. "[4th] Field Survey Coy R.E (8142) 26-1-18". Grey detail; overprint in red and blue. Two way traffic shown in red; single lorry traffic in blue., Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC19; envelope_number: 587.
Series Number Id: "G.S.G.S. no. 3165 [numbers stroked out with red overprint and followed with] 3177." Fourth Army motor traffic circuits before the Battle of the Somme, 1916. In upper right margin, "sheet 1." Grey and blue base map; overprint in red and blue. "This Map [printed 30-5-16] cancels the Map dated 20/3/16." No routes shown east of Bray-sur-Somme. Shows all of Fourth Army area from north of Fonquevillers to Harbonnieres, south of River Somme, and from Guillemonth, east of Albert, to west of Amiens. "Ordnance Survey, 1916.", Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC16; envelope_number: 424.
Series Number Id: UNKNOWN. Sheet number: part of sheet 51. Third Army route map before the Battle of Arras, 1917. [Drawn by] "1st Printing Coy. R.E. 3rd Army (950)." [Printed by] No 4 Advanced Section A.P.&S.S." "27 2 17" in red overprint. Traffic routes in red and blue overprint. Shows southern half of Third Army area - Arras in NE corner. Used by Major J. C. Thomson MC, OC 20th Siege Battery RGA (8-inch hows)., Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC20; envelope_number: 625.
Series Number Id: UNKNOWN. Sheet number: part of sheet 51. Third Army route map before the Battle of Arras, 1917. [Drawn by] "1st Printing Coy., R.E. 3rd Army (953)." [Printed by] "No 4 Advanced Section A.P & S.S." "27.2.17" in red overprint. Traffic routes in red and blue overprint. Shows northern half of Third Army area - Arras in SE corner. Used by Major J. C. Thomson MC, OC 20th Siege Battery RGA (8-inch hows)., Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC20; envelope_number: 644.
Series Number Id: UNKNOWN. Sheet number: part of sheet 51. Third Army route map 1916/1917. "1st Printing Coy., R.E. 3rd Army (953)." Area is northern half of Third Army area - Arras in SE corner. Traffic routes in red and blue overprint., Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC19; envelope_number: 617.
Series Number Id: UNKNOWN. Sheet number: part of sheet 36. Second Army traffic map, May 1918. Title in blue overprint. "M.T." refers to motor transport. "[4th] Field Survey Coy. R.E. (8505) 17-3-18 [numbered crossed out with red overprint and followed with] 8829 14-5-18". Grey base map with green squaring. Includes inset map: Poperinghe [scale approximately 1:20,000]., Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC19; envelope_number: 586.
Series Number Id: GSGS 3135. At head of map: part of sheet 5A (Belgium). Portion of title statement in red overprint. "Ordnance Survey, April, 1917." Grey and blue base map; red and black overprint. Shows whole of Second Army area from north of Ypres to south of Armentieres., Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC19; envelope_number: 582.
Series Number Id: [GSGS 2364]. Sheet number: part of sheet 36. In upper left margin, "France 1:100,000." In upper right margin, "Parts of Abbeville and Lens 11". "Ordnance Survey (O.B.) [Overseas Branch] June, 1918." Grey detail with black overprint. "10,048" in manuscript in bottom margin [supplies the 3rd Field Survey Co. serial number]. Manuscript on reverse: From GHQ 11-7-18., Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC20; envelope_number: 638.
Series Number Id: UNKNOWN. Sheet number: parts of sheets 51 and 57. Edition number: 1. Final advance to Hindenburg Line, September 1917. "[3rd] Field Survey Bn. (10814) 15-9-18." Red overprint shows two way lorry traffic; blue overprint shows one way lorry traffic; and, pecked blue overprint shows ambulances only. "Note: Traffic Circuits in Back Areas remain as before." Some manuscript additions in Albert - Peronne area., Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC19; envelope_number: 598.
Series Number Id: UNKNOWN. Sheet number: part of Sheet 36. Edition number: 6. Grey detail; overprint in black and red. Includes text in black overprint on traffic regulations, and reference to standard traffic signs. "[1st] Field Survey Battn. R.E. 6291 [followed with black overprint] 6383.", Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC22; envelope_number: 688.
Series Number Id: UNKNOWN. Sheet number: part of sheet 36. Second Army traffic circuits, August 1918. "Ordnance Survey, (O.B.) August, 1918." Grey base map with green squaring, overprint blue and red.
Manuscript on reverse: "If lost return to 87th Field Ambulance. A Broom. MT, ASC. 87th Field Ambulance. Ford 19 [?]. C.A.B.R.O. [?]". Sign on reverse: AT7 [i.e. 87] within circle over triangle., Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC15; envelope_number: 404.