"Gun barrels, previous to the war, were practically all manufactured in Birmingham, England and Liege, Belgium. Perhaps you may remember that during the early days of the war the Germans drove the men out of a large factory just on the outskirts of Liege. That factory was where practically all the American barrels were manufactured."
(In the Boring Dept.) "...you see the barrels in very large quantities coming into this department in hard wooden boxes which are characteristic of the foreign shipments."