American Demonstration Telephone, c. 1920
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Description
American Demonstration Telephone, c. 1920
"Property of the Postmaster General", no. 466, for demonstrating components and wiring, with height-adjustable transmitter, Bell-type receiver, dial, bell, receiver switch, induction coil, resistance coil, condenser and lamp, in wood case with folding lid and front containing instructions and wiring diagram.
Amerikanisches Demonstrationstelephon, um 1920
"Property of the Postmaster General", Nr. 466, zur Demonstration der Bauteile und der Verdrahtung, mit höhenverstellbarem Mikrophon, Bell-Typ-Hörer, Wählscheibe, Klingel, Schalter, Induktionsspule, Widerstand, Kondensator und Lampe, in aufklappbarem Holzkasten, Schaltplan und Anleitung in den Klappen.
Start Price: EUR 180
"Property of the Postmaster General", no. 466, for demonstrating components and wiring, with height-adjustable transmitter, Bell-type receiver, dial, bell, receiver switch, induction coil, resistance coil, condenser and lamp, in wood case with folding lid and front containing instructions and wiring diagram.
Amerikanisches Demonstrationstelephon, um 1920
"Property of the Postmaster General", Nr. 466, zur Demonstration der Bauteile und der Verdrahtung, mit höhenverstellbarem Mikrophon, Bell-Typ-Hörer, Wählscheibe, Klingel, Schalter, Induktionsspule, Widerstand, Kondensator und Lampe, in aufklappbarem Holzkasten, Schaltplan und Anleitung in den Klappen.
Start Price: EUR 180
Condition
(2-3/-)
Buyer's Premium
- 23.8%
American Demonstration Telephone, c. 1920
Estimate €300 - €500
11 bidders are watching this item.
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Item located in Koeln, NRW, deOffers In-House Shipping
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