Chalk Line Painting
1970

First Abstract Grid Painting
1970

Untitled (Chalkline Painting)
1970

Grid Painting
1971

Untitled
1972

Untitled
1972

Untitled (early grid painting)
1972

Yellow Spray Painting
1972

Zebra Piece
1972

Untitled
15 June 1972

Untitled
15 June 1972

Spray Painting
1973

String Painting
1973

Untitled
1973

Untitled
9 December 1973

Untitled
1974

Untitled
21 April 1974

Untitled
29 April 1974

Untitled
7 May 1974

Untitled
19 May 1974

Untitled
4 June 1974

Untitled
25 June 1974

Untitled
6 July 1974

Untitled
8 September 1974

Untitled
November 1974

Four Triangles, Twelve Different Angles
1975

Untitled
1975

Untitled
7 October 1975

Untitled
29 November 1975

Untitled
1976

Untitled
3 January 1976

Untitled
6 March 1976

Untitled
24 March 1976

Untitled
10 April 1976

Untitled
11 July 1976

Untitled
7 May 1978

Large Wall Mount
30 January 1992

FDR
2006

Red, Green, and Yellow Floaters
2008

Yellow Floaters
2008

Six Floaters

Green Cornucopia
2009

Mouse Turds and Black Rice
2009

Orange Floaters with Six Cornucopias
2009

Cornucopias
May 2010