1980.04

1980.05

## Eight Squares with a Different Color in Each Half Square (Divided Horizontally and Vertically)

1980.06

## Eight Squares With a Different Color in Each Half Square (Divided Vertically and Horizontally) Composite

1980.07

## Four Part Combinations of Geometric Figures in Four Colors

1980.08

## Four Part Combinations of Geometric Figures in Four Colors

1980.09

## Four Part Combinations of Geometric Figures in Four Colors

1980.10

## Six Geometric Figures and All Their Combinations

1980.11

## Six Geometric Forms

1980.12

## Windows

1980.13

## Untitled

1981.01

## A Square for Each Day of the Seventies

1981.02

## Lines in Two Directions & In Five Colors on Five Colors with All Their Combinations

1982.01

## Nine Geometric Figures (White Lines on Black)

1982.02

## A Square Divided Horizontally and Vertically into Four Equal Parts, Each with a Different Direction of Alternating Parallel Bands of Lines

1982.03

## Five Forms Derived From a Cube

1982.04

## Forms Derived from a Cube

1982.05

## Geometric Form Derived from a Cube (Isometric Trapezoid)

1982.06

## Statues (a Melodrama)

1983.01

## Doubles in Black and Gray

1983.02

## Double Stars

1983.03

## Stars – Red Center

1983.04

## Stars – Blue Center

1983.05

## Stars – Light Center

1983.06

## Stars – Dark Center

1983.07