SIEMENS BROTHERS No. F1040

RADIAL ARM INTERCOMMUNICATION TELEPHONES
Suitable for Central Battery and Local Battery working

(Table Pattern)

F1040
Intercom phones that can support 5, 10, 15 or 20 lines.

F1040 - 5 lines
F1040A - 10 lines
F1040B - 15 lines
F1040C - 20 lines

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

Last revised: October 19, 2025

FM2