GEC K7940

SECRET SERVICE INTER-COMMUNICATION TELEPHONE
CENTRAL BATTERY SYSTEM
Table Pattern

Consisting of similar essential parts to K 7925, but with the addition of a Multiple Flexible Cord with Ebonised Wall Rosette and Terminals.

Available with 5 lines, 10 lines, 15 lines, 19 lines or 24 lines.


Taken from the GEC Telephone Catalogue, K Section, 10th Edition, 1908

Last revised: July 31, 2025