Series Number Id: GSGS 2742; Sheet number: 57d NE; Edition number: 2d, Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC06; envelope_number: 143, Manuscript markings for point in a 1,000 yard square (incorrectly given!) west of Gommecourt; another point marked north-west of Fonquevillers; Manuscript on reverse: C.E.Hickman [RFA]; mud stain on face.