This picture shows a 1923 permanent-waving machine built by Icall for sale by Eugene Suter under the name "Eugene". The 22 tubular heaters, designed in 1917 by Isidoro Calvete and patented by Suter in 1920, hung from the 'chandelier' by their wires, which also served to take the weight of the heaters. This type of heater could only be used for 'root-winding' of the hair.
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Original material inherited from my father, showing full machine in use
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{{Information |Description= |Source=Original material inherited from my father, showing full machine in use |Date=1920 |Author= Louis Calvete |Permission= |other_versions= }}