Series Number Id: GSGS 2742; Sheet number: 62d SE; Edition number: 3c (local), Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC28; envelope_number: 818, OS(OB) July 1918. Trenches to 31 July 1918, o/p blue [5th] FSB 4122 3-8-18.
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