Cunard Shell Works, Bootle, Merseyside, September 1917. Artillery shell casings at various stages of completion, standing in a storage area. In 1915 the Cunard Steamship Company?s store and engineering works at Rimrose Road, Bootle, was converted into a munitions factory. Four-and-a-half-inch, six-inch and eight-inch shells were brought to Cunard's Shell Works to be finished, checked and varnished before being taken to another factory in the area to be filled with explosive.