Wall Telephone with Carbon Pencil Microphone, c. 1890

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LOT 0099 Wall Telephone with Carbon Pencil Microphone, c. 1890

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EUR350

Estimate EUR 600 ～ 900

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Wall Telephone with Carbon Pencil Microphone, c. 1890 Rudolph Krüger, Berlin. Walnut case, carbon pencil microphone with wood membrane, 2 spoon-shaped earphones, single bell, with key. Fernsprech-Wandapparat mit Kohlen- walzen-Mikrophon, um 1890 Rudolph Krüger, Berlin. Nußbaumgehäuse, Kohlenwalzen-Mikrophon mit Holzmembrane, 2 Fernhörer in Löffelform, Wecker mit einer Glocke, mit Schlüssel. Start Price: EUR 350

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