"F.S.Co. 1052 11-9-17. 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: 493, Printed notes & reference in bottom margin. Strong points, dugouts believed to be concrete and approximate British Front in red.