THE METROPOLITAN TELEPHONE CO.'S NEW CENTRAL STATION AND GREAT SWITCHBOARD. Fig. ICELLAR SHOWING TERMINALS OF SUBWAYS AND ENTRANCE OF TELEPHONE CABLES. ENE EEE EEE 'NEE Fig. 4NEW CENTRAL STATION OF THE METROPOLITAN TELEPHONE CO. N. YTHE GENERAL EXCHANGE., scientific american, 1889-03-30
THE METROPOLITAN TELEPHONE CO.'S NEW CENTRAL STATION AND GREAT SWITCHBOARD. Fig. ICELLAR SHOWING TERMINALS OF SUBWAYS AND ENTRANCE OF TELEPHONE CABLES. ENE EEE EEE 'NEE Fig. 4NEW CENTRAL STATION OF THE METROPOLITAN TELEPHONE CO. N. YTHE GENERAL EXCHANGE., scientific american, 1889-03-30
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