This illustration is from the 1914 text “Wireless telegraphy: a handbook for the use of operators and students“.

It shows the somewhat cramped, but well equipped, wireless cabin of the Cunard Line’s R.M.S. Franconia. The wireless equipment was supplied by the Marconi Company, and consisted of a 1-1/2 kw spark transmitter, in addition to a totally independent 500 watt emergency transmitter. The receiver consisted of either a magnetic detector or a Fleming valve.

RMS Franconia
(Photo, Wikipedia.)

The first voyage of the Franconia was from Liverpool to New York in February, 1911. She served commercially until 1915, when she was called in for use as a troop transport in the Mediterrranean. She was sunk by a German U-Boat on October 4, 1916. Fortunately, she was carrying no troops at the time, but of the 314 crew, 12 were lost.  The ship, along with the equipment shown above, lies at the bottom of the Mediterranean, 195 miles east of Malta.