Series Number Id: GSGS 3062; Sheet number: 57d NE3 +4 (Parts); Edition number: 2, Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC03; envelope_number: 69, Manuscript on face: possibly for advance through Serre and Pendant Copse; some additional trenches drawn in bottom margin; Manuscript on cover: +quot;Danby+quot;.