[Radio transmitting station--Western Electric Company.]
Aerial on Roof of Aeolian Bldg. from 501 Fifth Avenue.
[Switchboard at the long distance headquarters of the American Telephone and Telegraph Company.]
[General view of sender frames in a panel dial central office.]
[Final tests on raidio broadcasting transmitter--Madison Square Garden.]
[General view of some of the dial equipment, Trafalgar Central Office.]
[Overseas switchboard at 32 Avenue of the Americas.]
[Morse Relay machine.]
[Telegraph.]
Aeolian Co., Bldg. Aeolian Co. 29 West 42nd Street.
[Morse recorder made by Samuel F. B. Morse.]
[Man at switchboard.]
[Communication engine room.]
[Close up of a teletypewriter switchboard.]
[Intercom and office directory for the Lord Electric Company, 333 West 49th Street]
Marconi, Wireless Telegraphing Apparatus.
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.