GEC K 252
The Complete Intercommunication Telephone
Consisting of Hand Combination with Switch in Handle, Induction Coil, ringing Key, Call Buzzer, Line Selector, and Numbered Label.
Arranged for fixing to wall.
Available in 5, 10, 15, 20, 25 & 30 line variants.
The 10 line version is shown to the right and cost
Taken from the G.E.C. Illustrated Telephone Catalogue 9th edition (1904)
Last revised: April 06, 2021