Demonstration Model of an Early Carbon Grain Microphone, c. 1900
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Description
Demonstration Model of an Early Carbon Grain Microphone, c. 1900
With series resistor and switch, wood base stamped with no. 188937.
Demonstrationsmodell eines frühen Kohle-körnermikrophons, um 1900
Mit Vorwiderstand und Schalter, Holzsockel geprägt mit Nr. 188937.
Start Price: EUR 140
With series resistor and switch, wood base stamped with no. 188937.
Demonstrationsmodell eines frühen Kohle-körnermikrophons, um 1900
Mit Vorwiderstand und Schalter, Holzsockel geprägt mit Nr. 188937.
Start Price: EUR 140
Condition
(2-3/-)
Buyer's Premium
- 23.8%
Demonstration Model of an Early Carbon Grain Microphone, c. 1900
Estimate €300 - €600
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Item located in Koeln, NRW, deOffers In-House Shipping
Local Pickup Available
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