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

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