Jan Matulka, Prague, c. 1921, Gouache and pencil on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/36964

Jan Matulka, Cityscape, (c. 1925), Crayon on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/36951

Jan Matulka, Cityscape, (c. 1925), Ink on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/36957

Jan Matulka, Figure Composition - Working Men, (c. 1927), Ink, crayon, and pencil on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/36969

Jan Matulka, Gasoline Pumps, (c. 1934), Gouache and pencil on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/36974