Situation map 5A, new series : [St. Quentin Region, 1917]
Series Number Id: GSGS 2840. Sheet number: part of sheet 62. At head of map, "Reprint 10,000. 14-8-17." "Ordnance Survey, June, 1917." Grey and blue base map with 1:40,000 sheetlines and squaring system overprint in green., Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC16; envelope_number: 427.