[Ficheux, Blaireville, Monchy-au-Bois : battlefield south of Arras]
Series Number Id: UNKNOWN. Sheet number: 51c SE, part of [east half]. Edition number: 3. Battlefield south of Arras: front lines, artillery intelligence, enemy battery positions, trench mortars and rear organisation 5-2-17. "Ordnance Survey, December, 1916." "3rd Field Survey Coy R.E. (1347)." Detail, grid and contours grey. Overprinted with pecked purple British front line and pecked orange-brown German front line. Overprinted in purple: [German battery positions and arcs of fire]; Reference; list of square positions of trench mortars. Purple, green and orange-brown plates registered with needles. Overprinted green: military tracks and observation posts. Overprinted orange-brown: light railways and supply dumps., WW1 Trench Map Collection: Box PC15, Envelope 412.