Media or Materials: Steel

 1983  |  Long-Term Collection

 2015  |   Collection

 2004  |  Long-Term Collection

 1994  |  Long-Term Collection

 2002  |  Long-Term Collection

 1991  |  Long-Term Collection

 Date Unknown  |  Long-Term Collection

 2016  |  Long-Term Collection

 2009  |  Long-Term Collection

 2020  |  Long-Term Collection

 2013  |  Long-Term Collection

 2006  |  Long-Term Collection

 2001  |  Long-Term Collection

 1975  |  Long-Term Collection

 2009  |  Long-Term Collection

 2005  |  Long-Term Collection

 2011  |  Long-Term Collection

 2007  |  Long-Term Collection

 1987; 2006  |  Long-Term Collection

 2001  |  Long-Term Collection

 1986  |  Long-Term Collection

 1995  |  Long-Term Collection

 2012  |  Long-Term Collection

 1977  |  Long-Term Collection

 Concept Design, 2012  |  Archive Collection

 July 2018  |  Long-Term Collection

 2006  |  Long-Term Collection