Camouflaged trenches in Chemin des Dames sector
British Royal Engineers constructing second line trenches in Flanders
Entrance to dugout, Y.M.C.A. station at Badonviller
General De Puydraguen coming out of a trench near Lac Blanc in the Vosges section
Boston water works, Sudbury River Conduit, 1876, Division III, Section 12, sheeted trench heavy sand cutting.
Boston water works, Sudbury River Conduit, 1876, Division III, Section 12, sheeted trench heavy sand cutting.