Wireless Telegraphy Demonstration Apparatus after Marconi

Wireless Telegraphy Demonstration Apparatus after Marconi, comprising of this Transmitting Station with Righi radiator of 100 and 40mm size of sphere, in a lock-up polished case and a Receiving station (which has not found) with 1 cohered, 1 polarised relay, 1 electric tapper, 2 resonators, 2 switches and 4 dry cells in polished lock-up carrying case.
Manufacturer: Max Kohl, Chemnitz, 63309Α

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ELE64

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