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Telephones and telegraphs: 1902 : [and Municipal electric fire alarm and police patrol systems] (1906)

United States. Bureau of the Census, Steuart, William Mott, 1861-, Martin, Thomas Commerford, 1856-1924, Abbott, Arthur Vaughan, 1854-, Mayer, William · Washington : Govt. Print. Off. · leaf 68

An illustration from Telephones and telegraphs: 1902 : [and Municipal electric fire alarm and police patrol systems], 1906, leaf 68
FIQ. 1.—AUTOMATIC TELEPHONE SWITCH,CENTRAL STATION. FIG. 2.—AUTOMATIC TELEPHONE DESK SET, SUBSCRIBERSSTATION.

Telephone · Telegraph · Fire alarms

Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.

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