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

Alexander Bogomazov, Studies for Constructivist Compositions, 1920–22, Pencil on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/38183

Alexander Bogomazov, Ukrainian Peasants at the Market (recto); Untitled (verso), c. 1920, Ink on paper (recto); Ink on paper (verso), The Museum of Modern Art, New York. https://dartabase.art/cite/moma/36476

Alexander Bogomazov, Three Figures of Woodcutters, c. 1927–28, Watercolor and pencil on paper on board, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/36471

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

Alexis Gritchenko, Saltimbanques Turcs, 1920, Pencil on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/35449

Alexander Bogomazov, .a) Man and Woman Carrying Large Baskets  .b) Untitled, c. 1927–28, Watercolor and pencil on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/36466