Bavarian Wall Telephone by Heller, c. 1900

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LOT 0302 Bavarian Wall Telephone by Heller, c. 1900

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EUR800

Estimate EUR 1,200 ～ 1,800

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Bavarian Wall Telephone by Heller, c. 1900 Friedrich Heller, Nuremberg. Walnut case, carbon pencils transmitter under wood membrane, 3-part crank inductor, double bell, 2 bakelite earphones, marked: "Friedrich Heller, Nürnberg-München", lower case with original acid battery in glass container. Bayerisches Wandtelephon von Heller, um 1900 Friedrich Heller, Nürnberg/München. Nußbaumgehäuse, Kohlestab-Mikrophon unter Holzmembrane, 3-lamelliger Kurbelinduktor, Doppelglocke, 2 Bakelithörer, jeweils bezeichnet Friedrich Heller, Nürnberg-München, Unterteil mit Original-Säurebatterie in Glasbehälter. Start Price: EUR 800

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