Barbara Chase-Riboud, [Untitled], 1966, Charcoal on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/36989

Barbara Chase-Riboud, [Untitled], 1967, Pencil and charcoal on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/33163

Barbara Chase-Riboud, [Untitled], 1971, Charcoal and pencil on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/35956