Description: Sheet 66dNW1. Edn.1A. Area: Lihons - Chaulnes - Hyencourt le Grand - Omiecourt - Pertain - Chilly - Hallu - Punchy - Puzeaux - Fonchette - Hyencourt le Petit - Bersaucourt. German trenches & names red. British front line pecked blue. Before German retirement to Hindenburg Line, but after the British Fourth Army had taken this area over from the French. In September/October 1915 British troops had temporarily taken over the French line south of the Somme as far as the Grand Bois du Lihons. The only British edition of this sheet.
