inside looks like the inside of an automotive distributor cap! you have the center contact from the coil and the surrounding contact points for each cylinder for the rotor!
I put it on what is it, and after looking at it closer and with the help of what is it. We have decided that it is a distributer cap of some kind. I have it soaking in water to see if I can get it to come apart. IMO it should come apart, I do not know how they would get the wires in on the side..