SIEMENS & HALSKE No. 4136

No. 4136
Loud Speaking telephone for magneto call consisting of watertight cast iron case, microphone, loud sounding receiver, large induction coil, alternating current bell with 1600 ohms resistance, specially powerful inductor with 3 magnets and special crank gland, microphone switch lever and cable gland.

Net weight about 17 kgs.

Taken from the Siemens & Halske Telephone Catalogue 1912

Last revised: May 05, 2023

FM2