A hot-rolled steel sculpture by Richard Serra titled To Encircle Base Plate Hexagram, Right Angles Inverted, dated 1970.

Richard Serra 

To Encircle Base Plate Hexagram, Right Angles Inverted

,
1970

Hot-rolled steel

26 ft. (7.9 m) diameter; flange: 8 inches (20.3 cm) wide

Saint Louis Art Museum

Photo by Gianfranco Gorgoni 
© 2017 Richard Serra/Artists Rights Society (ARS), New York

A hot-rolled steel sculpture by Richard Serra titled To Encircle Base Plate Hexagram, Right Angles Inverted, dated 1970.