[Broadcasting studio at Western Electric Company, 463 West Street.]

[Early types of switchboards, Old Spring Exchange.]

[Early types of switchboards.]

[Teletypewriter.]

[Tuning the CBS antenna on the Solmon Tower.]

[S. S. Normandie at the time of her arrival in New York Harbor.]

[New York Fire Department Water Tower.]

[Fire engine.]

[Broadway, north from Cortland Street.]

[Intercom and office directory for the Lord Electric Company, 333 West 49th Street]

Headquarter building of the American Telephone and Telegraph Company.

[DeForest Wireless station.]

[War emergency radio service.]

[Harding speaks at Tomb of unknown soldier.]

[General view of sender frames in a panel dial central office.]

[Switchboard at the long distance headquarters of the American Telephone and Telegraph Company.]

Western Union Telegraph Company. President's office

[IND Electrical Substation.]

Aerial on Roof of Aeolian Bldg. from 501 Fifth Avenue.

[Woman at a telegraph machine.]