[Woman at a telegraph machine.]

[Teletypewriter switchboard.]

[Morse Relay machine.]

Wireless Telegraphing--N.Y. Cruiser--Mast 150 Ft. High--Where Messages Are Sent to B.S. Mass.

N.Y. Cruiser--Mast 150 Ft. High, Wireless Telegraphing, Where Messages Are Sent to B.S. Mass.

N.Y. Cruiser--Mast 150 Ft. High, Wireless Telegraphing, Where Messages Are Sent to B.S. Mass.

[Telegraph.]

[Morse recorder made by Samuel F. B. Morse.]

[Man at switchboard.]

[Communication engine room.]

Wireless Telegraphing--N.Y. Cruiser--Mast 150 Ft. High--Where Messages Are Sent to B.S. Mass.

[Close up of a teletypewriter switchboard.]

[Sender frames, dial equipment.]

[General view of some of the dial equipment, Trafalgar Central Office.]

Wireless Telegraphing--N.Y. Cruiser--Mast 150 Ft. High--Where Messages Are Sent to B.S. Mass.

[People observing telephone operators.]

[Telephone operators.]

Chief, and Assistant, Engineers, of the New York Fire Department, 1857 & 8

[Morse telegraph recorder.]

[Telephone operators.]