"F.S.Co. 1053 10-9-17. Printed by No. 2 Advanced Section, A.P.&S.S." Grey base map, with red trenches and tactical intelligence. Message Form on reverse., Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC17; envelope_number: 494, Printed notes and reference in bottom margin. Strong points, dugouts believed to be concrete, and approximate British Front Line in red.