Scientific apparatus of electrotherapy machine influenced by Wimshurst electrostatic generator, machine to generate high voltages developed between 1880 and 1883 by the British inventor James Wimshurst (1832-1903)., Wood, Glass tube, Copper and brass, Wood crank, Leather strap Top: 50 cm long and wide: 45 cm by 18 cm weight 3.5 Kg good condition but in its own juice