WW1 Trench art vase made from brass shell

This trench art vase was made in the WW1 era. Made from what appears to be a 22 mm brass artillery shell. Measures 5 3/4" tall, and is decorated with punch designs and flared cut top. 2" diameter at he top. These momentos of war are very collectible, especially the early ones. Nice condition. I have more photo details if you need to see them, (just ask).