STERLING TELEPHONE AND ELECTRIC Co. Ltd


Sterling Interphones

STERLING "PRIMAX" SYSTEM OF AUTOMATIC INTERPHONES
(RADIAL SWITCH TYPE)
(Regd. Nos. 499,444 and 538,687)

ADVANTAGES

ALL LOCAL BATTERIES ARE ENTIRELY DISPENSED WITH

No. U 410

Automatic Interphone, Wall Pattern (Radial Switch Type) Revolving Granular Carbon Transmitter, Induction Coil, Double Pole Watch Receiver, Call Bell, Automatic Switch Hook, "Perfecta" step-by-step Radial Line Selector, Automatic Cut-in and Cut-out Device, Ringing Key.

Metal parts are Nickel-plated and Woodwork is Solid Walnut.

Available in 5, 10, 15 or 20 lines. (Over 20 line models made to order)


Taken from the Sterling Catalogue No. 11 & 12

See also GEC K7867

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Last revised: November 20, 2010