Sol LeWitt /Works and biography    Incomplete Open Cube 6/8, 1974 Painted aluminum, 106.7 x 106.7 x 106.7 cm Solomon R. Guggenheim Foundation, Hannelore B. and Rudolph B. Schulhof Collection, bequest of Hannelore B. Schulhof, 2012 2012.76 © Sol LeWitt, by SIAE 2012 credits: Hangar Design Group