Copper Pot with Coil and Water Pump

I acquired this odd contraption at an estate. Seems to have a copper saucepan/pot on top that has an electrode inside and is attached to an electrical source. The bottom of the pot has a copper coil that sticks down like 2 fingers and there is one other rod coming off of the pot. These 3 rods when placed on the copper box that is shown, align through 3 holes in the box and down into a copper box of water. There is a water pump inside of this box. Inside the pot is a hollow egg. I don't know if this egg was supposed to come with it or not. I have no idea what it is to be used for other than some type of heating apparatus. Any information would be appreciated!