1983.08
1983.09
Isometric Cube with Lines in Four Directions & Four Colors
1983.10
All One, Two, Three, and Four Part Combinations of Lines in Four Directions and Four Colors, Each Within a Square
1983.11
Hexagon – White Lines on Black
1984.01
Ficciones
1984.02
Form Derived From a Cube with Lines in Four Directions & Four Colors
1984.03
Form Derived From a Cube with Lines In Four Directions & Four Colors
1984.04
Form Derived From a Cube with Lines In Four Directions & Four Colors
1984.05
Twelve Forms Derived From a Cube
1984.06
Sette Stelle
1985.01
Forms Derived from a Cube in Color (Simple and Superimposed) & Black & Gray
1985.02
Bands of Lines One Inch Wide in Four Directions & Four Colors
1985.03
Bands of Lines One Inch Wide in Four Directions in Black & Gray
1985.04
All One, Two, & Three-Part Combinations of Three Transparent Colors
1985.05
All One, Two, Three & Four-Part Combinations of Four Transparent Colors
1986.01
Arcs From Four Corners
1986.02
Piramidi (pyramids)
1986.03
A Pyramid
1986.04
Two Asymmetrical Pyramids
1986.05
Two Asymmetrical Pyramids and Their Mirror Images (Counterpoint)
1986.06
Five Geometric Figures in Five Colors
1987.01
Centered Cube Within a Blue Circle
1987.02
Centered Cube Within a Red Circle
1987.03
Pyramids
1987.04