[Morse recorder made by Samuel F. B. Morse.]
[Woman at a telegraph machine.]
[Morse telegraph recorder.]
[Teletypewriter switchboard.]
[Telegraph.]
[Man at switchboard.]
[Communication engine room.]
[Close up of a teletypewriter switchboard.]
[General view of some of the dial equipment, Trafalgar Central Office.]
[Sender frames, dial equipment.]
[Telegrams sent and received today.]
[People observing telephone operators.]
[Telephone operators.]
Marconi, Wireless Telegraphing.
[War emergency radio service.]
[District selector frame in a dial exchange.]
[H.L. Horton & Co. Interior, stockboard.]
[General view of sender frames in a panel dial central office.]