Combined situation map, First, Third & Fifth Armies, no. 3
Series Number Id: GSGS 3456. Sheet number: part of sheet 57. Combined situation map, German retirement and Battle of Arras, 1917. Title in blue overprint. Grey detail; water blue. In blue overprint: British Front Line evening of 12-4-17 in solid blue; British Front Line evening of 16-3-17 in pecked blue., Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC19; envelope_number: 583.