[Beauvois Region, west of Saint-Quentin : British organisation on 21 March 1918]
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.