two cloth covered Plaques Dynamo-Dermique, c.1900, in brass and zinc, each half stamped 'Brevetees SGDG PARIS', each 11.5cm across, with a photocopy of an explanatory leaflet; a 19th century pendant in copper, zinc and vulcanite, 'THE LONDON GALVANIC GNERATOR' by the Pall Mall Electric Association, 7cm excluding suspension; a Sanatoire Voltaique by Georges, Paris, early 20th century, in copper, in fitted case, device 6.4cm long (3)
Sold for £275
Result including buyers premium
two cloth covered Plaques Dynamo-Dermique, c.1900, in brass and zinc, each half stamped 'Brevetees SGDG PARIS', each 11.5cm across, with a photocopy of an explanatory leaflet; a 19th century pendant in copper, zinc and vulcanite, 'THE LONDON GALVANIC GNERATOR' by the Pall Mall Electric Association, 7cm excluding suspension; a Sanatoire Voltaique by Georges, Paris, early 20th century, in copper, in fitted case, device 6.4cm long (3)