Flanders, Realistic Travels, North Country troops bomb Hun machine-gunners out of their lairs in Polygon Wood, September, 1917, British soldiers throw hand grenades at German troops at the Battle of Polygon Wood, North Country troops bomb Their machine-gunners out of their lairs in Polygon Wood, recto - printed, stereograph, stereo photo, photographs, By Royal command to their Imperial majesties King George V and Queen Mary, 90, height 85 mm, width 170 mm, photographer, 1917-09 - 1917-09, cardboard, photographic paper, photo paper, gelatin silver print, developing gelatin silver print