A hot-rolled steel sculpture by Richard Serra titled Extended Cantilever, dated 1980.

Richard Serra 
Extended Cantilever, 1980

Hot-rolled steel

Eighteen plates, each: 6 ft. 6 3/4 inches x 14 ft. 9 inches x 1 inch (2 m x 4.5 x 2.5 cm)

Installation view, Museum Boijmans Van Beuningen, Rotterdam, The Netherlands, 1980

Photo by Cor Van Weele 
© 2017 Richard Serra/Artists Rights Society (ARS), New York

A hot-rolled steel sculpture by Richard Serra titled Extended Cantilever, dated 1980.