Antique World War I British Artillery Round Shell Brass Fuse Timer WW1

Antique brass artillery shell nose fuse timer, possibly British, probably circa WWI era. Brass. Has built in timer, working condition unknown. It is stamped on the bottom with lots of stuff... "No. 80 VII GK IV Lot E 640" 

Looks to be in nice condition with no obvious damage, has some surface wear and a dark old patina to the brass. Refer to the photos for a better idea of the condition, size and style, you will receive the exact artillery shell fuse that is pictured.