SIEMENS BROTHERS No. F1021 and F1023

BATTERY TELEPHONES

(Wall Pattern)

F1021
Battery Wall Telephone, in polished walnut case, comprising granular carbon transmitter, induction coil, "Watch" Receiver, Battery Bell (20 ohms resistance), Ringing Key and automatic Switch Hook.

F1023
Battery Wall Telephone similar to F1021, but with "Hand-Microtelephone".

Taken from the Siemens Brothers Catalogue "Telephones and Telephone Switchboards for private installation" 1913

Last revised: October 09, 2025

FM2