José Clemente Orozco, Two Hands, Lithograph, Publisher: Delphic Studios, Edition of 100, 42.8 x 23 centimeters, Date unknown, The Cleveland Museum of Art, Ohio
Manuel Saiz, Cordillera. Paisaje romántico (Mountain Range. Romantic Landscape), Iron and electric light, 100 x 130 x 80 centimeters, 1988, Museo Nacional Centro De Arte Reina Sofia, Madrid, Spain