Camilo Blas (José Alfonso Sánchez Urteaga), Threshing ( La Trilla ), 1928, Oil on board, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/37703

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

Byzantine 13th Century, Madonna and Child on a Curved Throne, c. 1260/1280, tempera on linden panel, National Gallery of Art, Washington. https://dartabase.art/cite/nga/35