Series Number Id: UNKNOWN. Sheet number: 19 NE. Secret, Army administrative situation map, coastal area. Covering British Fourth Army (Rawlinson) rear area. In right margin, "4th Field Survey Coy R E (1631)". "[4th] Field Survey Coy R.E (7521)" in red overprint in lower margin, followed by "10-9-17". Brown base map, with blue water and grid. Title portion, legend and textual note in red overprint., Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC27; envelope_number: 790.
Series Number Id: UNKNOWN. Sheet number: 5A. Edition number: 2. Second Army Corps and administrative areas before the Third Battle of Ypres, 1917. "Ordnance Survey, December 1916." Grey and blue administrative base map, with black manuscript ink additions showing Front Line with VIII, II, X, IX and II ANZAC Corps areas, together with other areas in red, not necessarily coinciding with black corps areas, designated by Roman numerals and a combination of Roman numerals and Latin letters. Manuscript note in margin and on reverse: P.A. 20/6/17., Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC21; envelope_number: 660.
Series Number Id: UNKNOWN. Sheet number: parts of 27, 28, 36, 36a. Artillery survey map; bearing pickets. "Field Survey Battn. R.E. (9356) 15-7-18 [followed with black overprint] (9405) 24-7-18". Title statement and note in black overprint. Gridded grey base map. Signals shown by black numbered dots., Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC19; envelope_number: 580.
Series Number Id: UNKNOWN. Sheet number: part of sheet 28. "Secret Army administrative situation map 1-2-18" in black overprint. "[Fourth] Field Survey Coy. R.E. (8039) 29-12-17 [numbers crossed out and replaced with black overprint] (8217)." Grey detail base map, with purple grid letters and numbers. Covers all of Ypres Salient, from Merckem in the north to Armentières in the south and Menin in the east; Ypres is in left centre. "Reference" shows railways, tramways, ammunition and other railheads, army roads, water points, ammunition and supply refilling points, and more. Railways in black; army roads in red., Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC27; envelope_number: 789.
Series Number Id: UNKNOWN. Sheet number: parts of sheets 27, 28. Artillery survey map; bearing pickets, 1918. Title statement and note in black overprint. "(9569) 29-7-18" in black overprint. Gridded grey base map, with olive green grid letters and numbers. Signals shown by black numbered dots., Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC19; envelope_number: 577.
Series number ID: GSGS 2742. Sheet number: 51cSE. Edition: 5. "Provisional". "From information to 20-5-18. All trenches approximate." OS March 1918.
Shows British trenches with names and wire, MGs, Artillery OPs, etc. Extremely scarce. Very good condition.
Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC27; envelope number: 791.
Series Number Id: UNKNOWN. Sheet number: part of Sheet 36. Loos-Lens-Lorette Spur-Vimy Ridge; trench and Canadian Corps light railways map. "Trenches corrected to 3-2-18." "Field Survey Co., R.E. 5744 [numbers crossed out and replaced with green overprint] 5915". Green overprint includes heading, "Secret, copy no., Canadian Corps light railways & tramways", and Reference. Detail, grid and contours grey; German trenches and names red; light railways and tramways, sidings, spurs, with names in green., WW1 Trench Map Collection: Box PC23, Envelope 724.
Series Number Id: GSGS 2742; Sheet number: 62c SE; Edition number: 4a (local), Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC28; envelope_number: 819, OS(OB) March 1918, [5th] FSC 3296 21-2-18. O/p blue: Trenches corrected from information received up to 2.2.18. O/p purple: Map showing British Organisation on March 21st 1918. Many camps and airfields shown, as well as British trench system (in blue) before German offensive of March 1918.
Series Number Id: UNKNOWN. Sheet number: part of sheet 36. Edition number: 5. "Secret, First Army Dispositions, January 20th 1918" followed by "Reference" in red overprint in right margin. Marginal "Reference" to First Army Musketry, Trench Mortar, Signal, SOS Schools, Canadian and other Corps Schools, etc. "[1st] Field Survey Co. R.E. 5643 [numbers crossed out and followed with red overprint] 5725". Grey base map of whole First Army area, from Ploegsteert in north to Arras in south, and as far west as Hesdin. Shows Army headquarters (black and red, at Ranchicourt), Corps (XV, Portugese [green and red], I, Canadian, XIII) and Divisional HQs and areas, and number of brigades on each divisional front, and rear reserve and training areas. Very small edition - printed on hand-press, registered with small cross-cuts in corners., Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC25; envelope_number: 765.