The Canadian Patent Office Record and Register of Copyrights and Trade Marks, Vol. XLIV, Ottawa, July 31st, 1916: "The Sonophone Company of Canada, Limited, Montreal, Que. Talking Machines and Talking Machine Records. Word: "Sonophone" enclosed in an ornamental border. 21st September, 1916."

The Son-o-phone was advertised extensively and sold exclusively by P.T. Legaré Company Limited, 195 Wellington Street, Sherbrooke, Quebec. The Sonophone Company also made a phonograph labelled Selecto-phone (see Selecto-phone page) which it demonstrated and sold at the H.P. Labelle & Cie store, 149 St. Catherine Street East, Montreal.

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Sherbrooke Daily Record, August 17, 1918, p. 8.

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La Tribune (Sherbrooke), December 6, 1919, p. 7.



Ottawa Journal, September 17, 1920, p. 7.



Le Nouvelliste (Trois Rivières), November 22, 1920, p. 7.



La Tribune (Sherbrooke), June 11, 1921, p. 7.



La Tribune (Sherbrooke), August 23, 1921, p. 6.



La Tribune (Sherbrooke), December 2, 1922, p. 9.



La Tribune (Sherbrooke), December 6, 1923, p. 7.



Waterloo Region Record, May 14, 1991, p. 38.

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The following pictures are of a Son-o-phone machine for sale in Barrie in December, 2009 (photos by KW):



It was using a Victor Exhibition soundbox.

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KW visited the Uxbridge Historical Centre in October, 2013 and was given permission to take and post the following pictures of their Son-o-phone:

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A Sonophone for sale on Facebook Marketplace in 2023.

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A Sonophone for sale on Facebook Marketplace in Shawinigan, Quebec in 2024.

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A console-model Sonophone for sale on Facebook Marketplace in Beauharnois, Quebec in 2025.