Antonio Dias, [Untitled], 1967, Gouache and colored ink on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/38129

Hélio Oiticica, Nucleus NC3 (Núcleo NC3), 1960–61, Oil and resin on wood fiberboard, Art Institute of Chicago, Chicago. https://dartabase.art/cite/aic/284499

Antonio Dias, [Untitled], 1967, Colored ink on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/38128

Carlos Scliar, Pear and Cherry, 1965, Acrylic and collage on paper on board, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/37659