A late 18th Century electro-static cylinder machine, with glass cylinder, velvet friction pad, glass insulator with collector comb, mounted on wooden stand - 14in.wide; a vacuum pump; glass bell jar; a prism on stand signed J.Duboscq Paris (damaged); and a lacquered brass thermopile by W.& J. George Ltd Birmingham (5)
A late 18th Century electro-static cylinder machine, with glass cylinder, velvet friction pad, glass insulator with collector comb, mounted on wooden stand - 14in.wide; a vacuum pump; glass bell jar; a prism on stand signed J.Duboscq Paris (damaged); and a lacquered brass thermopile by W.& J. George Ltd Birmingham (5)
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Suchauftrag anlegen.jpg "Quelle: Christie's")
.jpg "Quelle: Christie's")
.jpg "Quelle: Christie's")
.jpg "Quelle: Christie's")
