SECRET SERVICE INTER-COMMUNICATION
Comprising a hand Microtelephone with Switch in Ebonite Handle, Induction Coil, 3 inch Circular Call Bell, Auxiliary Call Buzzer, Line Indicators enclosed under a plate glass front, Jacks, Connecting Plug and Cord, Ringing Key with Ebonite Push Button and Nickel plated fixed Cradle for the Hand Combination.
Woodwork of solid well seasoned Polished Walnut and all external metal parts Nickel plated.
Available with 5 lines, 10 lines, 15 lines, 20 lines, 25 lines or 30 lines.
Last revised: February 05, 2011