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

Anonymous Artist, Portrait of a Young Man, c. 1650, oil on canvas, National Gallery of Art, Washington. https://dartabase.art/cite/nga/89

Juan Downey, Drawing for With Energy Beyond These Walls, 1969, Pencil, crayon, and gouache on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/34928

Guillermo Núñez, Untitled (From the series: Diario de Vida de New York), 1965, Watercolor and pencil on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/35757

Anonymous Artist, Andrea de' Franceschi, late 16th or early 17th century, oil on canvas, National Gallery of Art, Washington. https://dartabase.art/cite/nga/42

Anonymous Artist, The Smiling Girl, c. 1925, oil on canvas, National Gallery of Art, Washington. https://dartabase.art/cite/nga/62

Anonymous Artist, Pope Innocent X, c. 1650, oil on canvas, National Gallery of Art, Washington. https://dartabase.art/cite/nga/87

Anonymous Artist, Madonna and Child, c. 1470, tempera on poplar panel, National Gallery of Art, Washington. https://dartabase.art/cite/nga/1189

Anonymous Artist, The Lacemaker, c. 1925, oil on canvas, National Gallery of Art, Washington. https://dartabase.art/cite/nga/61

Juan Downey, A Clean New Race, 1970, Colored pencil, pencil, and gouache on board, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/37439

Anonymous Artist, Miss Nelly O'Brien, early to mid nineteenth century, oil on canvas, National Gallery of Art, Washington. https://dartabase.art/cite/nga/1215

Anonymous Artist, Saint Jerome in the Wilderness, c. 1475, tempera on poplar panel, National Gallery of Art, Washington. https://dartabase.art/cite/nga/39

Anonymous Artist, Saint Jerome in the Wilderness, c. 1490/1500, tempera on poplar panel, National Gallery of Art, Washington. https://dartabase.art/cite/nga/423

Luis Herrera Guevara, Self-Portrait (Autorretrato), 1933, Oil and gouache on board, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/33048

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

Mario Carreño, Sugar Cane Cutters, 1943, Ink and gouache on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/33609

Anonymous Artist, Christ Appearing to the Virgin, c. 1475, oil on panel, National Gallery of Art, Washington. https://dartabase.art/cite/nga/52

Guillermo Núñez, Untitled (From the series: Diario de Vida de New York), 1965, Watercolor and pencil on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/35770

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

Unknown 19th Century, Portrait of a Lady, probably c. 1820, oil on canvas, National Gallery of Art, Washington. https://dartabase.art/cite/nga/1131

Anonymous Artist, Saint Bernard with Donor [obverse], probably early 20th century, oil on panel, National Gallery of Art, Washington. https://dartabase.art/cite/nga/3200

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

Roberto Matta, Untitled from VVV Portfolio, 1942, published 1943, Watercolor and pencil from a portfolio of five etchings (one with aquatint), three duplicated drawings (two watercolor on paper and one crayon on paper), one collage, one engraving, and one gelatin silver print, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/32011

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

Unknown 18th Century, Benjamin West, c. 1776, oil on canvas, National Gallery of Art, Washington. https://dartabase.art/cite/nga/1133

Anonymous Artist, Moonlight, early 20th century, oil on canvas, National Gallery of Art, Washington. https://dartabase.art/cite/nga/3204

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

Anonymous Artist, Venus and Cupid in a Landscape, c. 1505/1515, oil on panel, National Gallery of Art, Washington. https://dartabase.art/cite/nga/283

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

Anonymous Artist, Study of an Old Man, probably late 17th century, oil on panel, National Gallery of Art, Washington. https://dartabase.art/cite/nga/1202