BATTERY CALL INTER-COMMUNICATION
Consisting of Hand Microtelephone with Double contact Key in Ebonite Handle, Induction Coil, Call Buzzer, Ringing Key, Sliding Line Selector and Fixed Cradle.
Woodwork of solid well Seasoned Polished Walnut and all exterior metal parts Nickel plated.
Available with 5 lines, 10 lines, 15 lines, 20 lines, 25 lines or 30 lines.
Last revised: February 05, 2011