Eduardo Chillida /Works and biography    Untitled, 1970 Ink and collage on paper, 20.3 x 27.9 cm Solomon R. Guggenheim Foundation, Hannelore B. and Rudolph B. Schulhof Collection, bequest of Hannelore B. Schulhof, 2012 2012.38 © Eduardo Chillida, by SIAE 2012 credits: Hangar Design Group