The legend around the rim is the same as the Canadian large cent of Edward VII (KM# 8). If that's front and back of the same piece, then I reckon it's a couple of cents, cut apart, stuck back to back, cleverly resculpted and then silvered.
It would qualify as "coin art" by some, "vandalism" by others. Unfortunately, it can't qualify as "Trench Art", the source coins are too old for WWI.
Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis