Dumoulin Walnut Intercom
Early Systeme Ader Wall Phone

"Système Ader" Wall Telephone

1894
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Société Industrielle des TéléphonesSociété Industrielle des TéléphonesSociété Industrielle des Téléphones, created in December 1893 when the Société Générale des Téléphones merged with the Menier cable and rubber factories. SIT inherited a dominant portfolio of telephone patents including those of Gower, Edison, Blake, and Ader, and operated factories in Paris, Levallois-Perret, Bezons, and Calais. The company produced the iconic "Violon" mahogany wall telephone around 1903 and fabricated the 1898 French Transatlantic Telegraph Cable from Brest to Cape Cod — at 3,174 nautical miles, the longest submarine cable of its era. Acquired by Compagnie Générale d'Électricité in 1936, SIT's assets evolved through CIT and CIT-Alcatel into what is today part of Nokia. · wall, French
"Système Ader" Wall Telephone

About This Phone

Marked on brass plaque and receiver: "Societé Industrielle des Téléphones, Système Ader", serial no. 27308, 10-pencil carbon transmitter under thin wood membrane, 2 receivers, with lightning protection and alarm bell.
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