Series Number Id: GSGS 3188. Sheet number: parts of sheets 57d SE, 57c SW, 62d NE, 62c NW. Battle of the Somme. "Ordnance Survey, 1916." "Trenches corrected to 2-6-16." Detail, grid and contours grey; water blue. German trenches red with names in blue; British front line pecked blue. Reduced from 1:10,000 trench maps. Showing the situation before the opening of the Battle of the Somme. Used during the Somme battle. The intention was that this map would be printed at 1:10,000 scale but, owing to a mix-up in instructions, it was reproduced at 1:20,000. Nevertheless, it proved very popular [source: Lt. Col. M. N. MacLeod, History of 4th FSC/B]. Manuscript markings on face in Mametz - Montauban - Longueval area: Queen's Nullah, 52 B.HQ, A & B, C & D, new trenches, Seaforths, etc. Manuscript on reverse: Capt.... [indecipherable]. Title printed on reverse., Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC14; envelope_number: 374.
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