Sir Henry Raeburn, David Anderson, 1790, oil on canvas, National Gallery of Art, Washington. https://dartabase.art/cite/nga/1195

František Kupka, [Untitled], 1928, Gouache, watercolor, and pencil on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/38252

Sir Henry Raeburn, Miss Eleanor Urquhart, c. 1793, oil on canvas, National Gallery of Art, Washington. https://dartabase.art/cite/nga/108

Sir Henry Raeburn, Colonel Francis James Scott, 1796/1811, oil on canvas, National Gallery of Art, Washington. https://dartabase.art/cite/nga/109

František Kupka, Admiration, c. 1899, Gouache, charcoal, watercolor, crayon, and pastel on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/33684

Sir Henry Raeburn, The Binning Children, probably c. 1811, oil on canvas, National Gallery of Art, Washington. https://dartabase.art/cite/nga/995

František Kupka, Replica of Fugue in Two Colors: Amorpha, 1912, (1946), Gouache, ink, and pencil on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/34761

Sir Henry Raeburn, John Tait and His Grandson, c. 1793, with additions c. 1800, oil on canvas, National Gallery of Art, Washington. https://dartabase.art/cite/nga/110

František Kupka, Replica (1946) of Vertical Planes, (1946), Watercolor, gouache, and pencil on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/34788

František Kupka, View from a Carriage Window, c. 1901, Gouache and watercolor on paper with cardboard overlay, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/34108

František Kupka, [Untitled], c. 1925–30, Colored pencil, pencil, ink, and oil on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/38250

František Kupka, Study with Green, (c. 1912), Chalk and gouache on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/38151

František Kupka, Prometheus, (1909), Gouache, watercolor, ink, and pencil on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/36018