Demonstration Telephone by Leybold, c. 1915
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Demonstration Telephone by Leybold, c. 1915
Marked: "E. Leybold's Nachfolger, Köln" (E. Ley bold's Successor, Cologne). With carbon granule microphone, resistance, switch and box earphone.
Demonstrationstelephon von Leybold, um 1915
"E. Leybold's Nachfolger, Köln". Mit Kohlen-Granu lat-Mikrophon, Widerstand, Schalter und Dosenhörer.
Start Price: € 160
Marked: "E. Leybold's Nachfolger, Köln" (E. Ley bold's Successor, Cologne). With carbon granule microphone, resistance, switch and box earphone.
Demonstrationstelephon von Leybold, um 1915
"E. Leybold's Nachfolger, Köln". Mit Kohlen-Granu lat-Mikrophon, Widerstand, Schalter und Dosenhörer.
Start Price: € 160
Condition
(3+/-)
Buyer's Premium
- 24.3%
Demonstration Telephone by Leybold, c. 1915
Estimate €300 - €500
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