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

Camilo Blas (José Alfonso Sánchez Urteaga), Threshing ( La Trilla ), 1928, Oil on board, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/37703

Zbigniew Makowski, [Untitled], 1964, Watercolor and ink on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/38583

Zbigniew Makowski, [Untitled], 1964, Watercolor and ink on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/37655

Jan Lebenstein, Figure, 1962, Gouache, watercolor, and ink on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/37823

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

Louis Marcoussis, Zither, Bottle, Pipe and Sheet Music, 1919, Watercolor, oil, gouache, ink, and pencil on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/35042

Henryk Berlewi, First State of the Mechano-Faktura (I Stade de la Mécano-Facture), 1923, Gouache and pencil on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/38181

Rafael Hastings, WHO? VII, (1968), Gouache, pencil, and felt-tip pen on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/38696

Aleksander Kobzdej, Conflict, 1959, Casein and oil on paper on canvas, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/33730

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

Jan Lebenstein, Axial Figure, 1960, Watercolor, ink, and ballpoint pen on graph paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/37821

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