[Vimy Ridge : front lines, artillery intelligence map 4-12-16]
Description
Series Number Id: [GSGS 3267]. Sheet number: 36c SW and 51b NW (parts of). Vimy Ridge front lines, artillery intelligence, enemy battery positions, trench mortars and rear organisation 4-12-16. At head of map: France, sheet 1. "Ordnance Survey, 1916." Detail, grid and contours grey; water blue. Overprinted with pecked purple British front line, and pecked yellow ochre German front line. Overprinted in green: [German battery positions and arcs of fire]. "Reference" overprinted in purple, showing guns, howitzers, trench mortars, etc. Purple, green and ochre plates registered with needles. Erratum slip relating to Battery No. 96 stuck to left margin., WW1 Trench Map Collection: Box PC16, Envelope 438.