With his mother, St. Gallen, ca. 1913

With his parents, St. Gallen, ca. 1915

1925

With his mother, 1929

With his parents, St. Gallen, ca. 1930

1934 (@ E. Sauser)

Paris, ca. 1934

With André Lévy during a repetition of the Sonate en un seul mouvement op. 17 (Paris, 27.05.1938)

Octobre 1938

1941 (© Germaine Martin)

ca. 1941

ca. 1941

ca. 1941

Saas Fee, 1950

Chandolin, August 1951

With François Pétermann and Rose-Marie Hohner

February 1952 (© Marie-Lise Bonnard)

ca. 1957 (© Henri Jaccard)

At his home in Lausanne, ca. 1957

At his home in Lausanne, ca. 1957 (© Henri Jaccard)

At his home in Lausanne, ca. 1957 (© Jean-Daniel Grobet)

At home in Lausanne, ca. 1957 (© Jean-Daniel Grobet)

At his home in Lausanne, ca. 1957

The death mask, March 20 1959