Rare Pair of British 12 pounder Naval gun brass shell cases dated 1917 turned into trench art

This is a rare Pair of British 12 pounder Naval gun brass shell cases dated 1917. Both have been  turned into trench art . This is a rare type of case to find. The shell cases are in very nice condition and still retains their brass colour lovely and clean. Both have been cut down, one has Tobacco engraved to the front and stencilled lines . The other has a Horses head in copper to the front. The cases are complete on the bottom with their original markings and is dated 1917.