General Ferrié is among those figures in Dufy’s mural whose achievement has been particularly felt in France. As a military engineer he revolutionized the field of communications by developing the first wireless, or radiotelegraphic, network for the French army.
Gustave Auguste Ferrié was born November 19, 1868, in the commune of St. Michel-de-Maurienne, Savoie, and earned a degree in engineering at the Ecole Polytechnique in 1889. He began a career in the army as a member of the Corps of Engineers, where he was designated a telegraph officer.
Given the job of improving the telegraphy of the French army, he began working on wireless communications systems. In 1903 he transformed military radiotelegraphy by employing the newly developed electrolytic detector, a precursor of the vacuum tube, to receive radio waves. In the same year he erected a radio communications antenna on the Eiffel Tower which had a range of up to 6000 km, or 3700 miles. Then in 1914, just before the beginning of World War I, he mass-produced his own model of triode, or amplifying vacuum tube, which facilitated the amplification of an electronic signal so it could be broadcast as a radio wave, the essential element of radiotelegraphy.