I have just acquired this magnificent objet for a few quid at a flea market. It practically begs to be picked up and fondled, and then pointed at someone. This is a view of the barrel. Any guesses as to what it is? Clue: it is not a toy gun, real gun, or stage prop. A pair of cables running out of the grip attach to a standard 20MW DeLameter powerpack are terminated with alligator clips.