Félix Vallotton, Blonder Akt, 1921, Öl auf Leinwand, Städel Museum, Frankfurt am Main. https://dartabase.art/cite/staedel/2243

Félix Vallotton, The Bath, 1894, printed after 1925, Woodcut in black on off-white wove paper, Art Institute of Chicago, Chicago. https://dartabase.art/cite/aic/60723

Pablo Picasso, Head of a Woman, spring 1909, Gouache, watercolor, and black and ochre chalks, manipulated with stump and wet brush, on cream laid paper, Art Institute of Chicago, Chicago. https://dartabase.art/cite/aic/53111

Pablo Picasso, Seated Female Nude, summer 1909, Watercolor and gouache, over graphite, on tan wove paper, Art Institute of Chicago, Chicago. https://dartabase.art/cite/aic/79377

Pablo Picasso, Portrait of Fernande Olivier, 1906, Drypoint with plate tone on copper in black on ivory laid paper, Art Institute of Chicago, Chicago. https://dartabase.art/cite/aic/41433

Pablo Picasso, Two Nudes, Standing, fall 1906, Graphite, with stumping, on cream laid paper, Art Institute of Chicago, Chicago. https://dartabase.art/cite/aic/51364

Pablo Picasso, Studies of a Rooster, c. 1896, Colored chalk on beige antique laid paper, Harvard Art Museums, Cambridge. https://dartabase.art/cite/harvard/5361

Pablo Picasso, Fernande Olivier, summer 1906, Charcoal, with stumping, on cream laid paper, Art Institute of Chicago, Chicago. https://dartabase.art/cite/aic/75420

Pablo Picasso, Woman with a Helmet of Hair, 1904, Gouache on tan wood pulp board, Art Institute of Chicago, Chicago. https://dartabase.art/cite/aic/68414

Félix Vallotton, Five O'Clock, plate seven from Intimacies, 1898, Woodcut in black on cream wove paper, Art Institute of Chicago, Chicago. https://dartabase.art/cite/aic/62164

Félix Vallotton, Jura-Landschaft bei Romanel, 1900, Öl auf Malpappe, Städel Museum, Frankfurt am Main. https://dartabase.art/cite/staedel/4057