Series Number Id: GSGS 2742; Sheet number: 66c NE; Edition number: 3a (local), Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC28; envelope_number: 814, OS(OB) March 1918. Trenches to 12 February 1918, [5th] FSC 3135 6-2-18.
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