Kelly Miller, Kelly Miller's History of the World War for Human Rights
“ One such train used by the French included armored locomotive, flat cars on which were mounted the guns in "barbettes," or steel turrets, and completely protected armored cars, used to transport troops or detachments of men.A feature of the train was the observation tower. It was mounted upon what would ordinarily be the cab of the locomotive. Such towers have in one form or another become very common in the war. One type resembles the motortruck ladder and platform devices used by the man who repairs electric lights and wires in our city streets. ”
