Description: GSGS 3528, grey and blue squared base map (reduced from 1:40,000 sheets). Area: First Army Front from Armentières in north to Boyelles (south of Arras) in south. O/p red [1st] Field Survey Battn RE 6649 Distribution of German Forces 5-8-18. Shows Front Line, Army Boundary (6th and 17th Armies), Group Boundaries, Group [Corps] HQs, Division HQs, Divisions Probably in Reserve, Recently Relieved, Moderately Fresh. Last Identification is shown Opposite Each Division. Gives prisoner and other sources of intelligence. Index map showing 1:40,000 sheets in bottom margin. Worn thin along centre fold on reverse. Portrait format sheet 59 x 50 cm. Not linen backed.
