WWI - Trench Art & Souvenirs

Super looking shell measuring 3" diameter by 13 3/4" high and weighing 2.10 lbs. The bottom of the shell reads, "75 D>E>C>, Np 3971 18PO. The shell's artwork says, "Battle of St. Mihei, Oct 10 1918, C 115, France Nov 11 1918". It has crossed signal flags on obverse and the cross of Lorraine on the reverse. Nice looking shell.