Nu De Dos

Charcoal and estompe on MBM paper, partial watermark, c. 1935. Signed lower right.
Dimensions: 60 x 41.5 cm. Provenance: Galerie Paul Valloton, Lausanne, with label bearing stock number 4650;
Private collection Switzerland; Sale Berne, Galerie Kornfeld, 16-06-2011 lot 307.