The practical telephone handbook and guide to the telephonic exchange (1906)
Poole, Joseph · New York, Macmillan Co. · leaf 581
Prompter … TELEPHONE-ROOM Fig. GOO.—Electrophone Arrangements in Paris Theatres sets are fitted in iron waterproof boxes fitted in the streets,either on posts or on walls, and sometimes so arranged thataccess can be obtained by privileged persons by key, and byother persons by the breaking of a pane of glass,…
Telephone
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