[Radio transmitting station--Western Electric Company.]
[General view of sender frames in a panel dial central office.]
Aerial on Roof of Aeolian Bldg. from 501 Fifth Avenue.
[Overseas switchboard at 32 Avenue of the Americas.]
[Switchboard at the long distance headquarters of the American Telephone and Telegraph Company.]
[Final tests on raidio broadcasting transmitter--Madison Square Garden.]
[General view of some of the dial equipment, Trafalgar Central Office.]
[Press photo of the model of CBS's annex studio.]
Marconi, Wireless Telegraphing Apparatus.
[Morse Relay machine.]
[Woman at a telegraph machine.]
Aeolian Co., Bldg. Aeolian Co. 29 West 42nd Street.
[Morse telegraph recorder.]
[Teletypewriter switchboard.]
[Traffic tower on 5th Avenue and 58th Street.]
Wireless Telegraphing--N.Y. Cruiser--Mast 150 Ft. High--Where Messages Are Sent to B.S. Mass.
Marconi, Wireless Telegraph Inc.
Communications, Marconi's Wireless Telegraphing Apparatus.
[Sender frames, dial equipment.]