Helen Dahm, Ulysse Dutoit, Albert Franzoni, François Gos, Jean Hellé, Jean …

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Helen Dahm, Ulysse Dutoit, Albert Franzoni, François Gos, Jean Hellé, Jean Iten, R. Lackerbauer, William Métein, Gregor Rabinovitch, Alexander Soldenhoff, August Weber, Eugen Zeller, Hermann Hubacher