A metal plate to which a single gold leaf supported by an insulating bush in a metal case with a 4mm socket earthing terminal. The front window is clear and the rear window is of ground glass mounted upon a bakelite base and two interchangeable electrodes are supplied, one being a traditional disc top plate 50mm diameter, while the other is in the form of a metal hook 160mm overall dimensions complete with insulating bush 112x63x143mm high.

A metal plate to which a single gold leaf supported by an insulating bush in a metal case with a 4mm socket earthing terminal. The front window is clear and the rear window is of ground glass mounted upon a bakelite base and two interchangeable electrodes are supplied, one being a traditional disc top plate 50mm diameter, while the other is in the form of a metal hook 160mm overall dimensions complete with insulating bush 112x63x143mm high.