Öyvind Fahlström, Study for Eddie (Sylvie's brother) in the Desert, 1966, Ink and pencil on notebook paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/37763

Rafael Hastings, WHO? VII, (1968), Gouache, pencil, and felt-tip pen on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/38696

Öyvind Fahlström, Notes for "The Little General", 1968, Ink, ballpoint pen, and pencil on two sheets of paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/36867