Originally Posted by Andy H
Yep as mentioned by others definitely some trench art you have there. Now whether its genuine WW1 trench art or some modern day rip-off, only the provenance will help in that regard.
There is a booming industry in Eastern Europe producing WW1 Trench Art, and in some regards the market had become flooded, affecting prices and also raising skeptical eyebrows about authenticity.
Definitely trench art. Just inventoried several boxes of stuff like this including a lamp, candle holders, and vases made from expended brass artillery shells. They feature either detailed engraving, or have been decorated using a mallet to hammer in the details. All are from the 339th Engineers when they were serving in North Russia and was brought home by those that made it. There is no doubt that those items are for real.
And, like mentioned, if you find such stuff being advertised for sale from Russia, it is likely fake.
More pics of field art from expended artillery casings;