1976.05
Lines in Color on Color
1976.06
Lines in Four Directions (from the Rubber Stamp Portfolio)
1976.07
Geometric Figures Within Geometric Figures
1976.08
Geometric Figures Within Geometric Figures
1976.09
Geometric Figures within Geometric Figures (Composite)
1976.10
Geometric Figures within Geometric Figures (Composite)
1977.01
Lines from Corners, Sides and the Center, to Points on a Grid (Black)
1977.02
Six Geometric Figures (Circle, Square, Triangle, Rectangle, Trapezoid and Parallelogram)
1977.03
All Double Combinations (Superimposed) of Six Geometric Figures (Circle, Square, Triangle, Rectangle, Trapezoid and Parallelogram)
1977.04
All Double Combinations (Superimposed) of Six Geometric Figures (Circle, Square, Triangle, Rectangle, Trapezoid and Parallelogram)
1977.05
Lines & Color. Straight, Not-Straight & Broken Lines Using All Combinations of Black, White, Yellow, Red and Blue for Lines and Intervals
1977.06
Serial System Using Lines and Color
1977.07
Bands of Lines in Four Directions
1977.08
All Double Combinations (Superimposed) of Geometric Figures (Circle, Square, Triangle, Rectangle, Trapezoid, Parallelogram)
1977.09
Bands of Lines in Four Directions in Four Colors
1977.10
Serial System Using Lines and Color Composite
1978.01
Lines in Four Directions (Horizontal, Vertical, Diagonal Right and Diagonal Left) and All Their Combinations. Four Colors (Yellow, Black, Red and Blue) and All Their Combinations
1978.02
Lines In Color on Color From Corners Sides and Centers to Specific Points on a Grid
1978.03
Lines In Color on Color From Corners Sides and Centers to Specific Points on a Grid
1978.04
Six Geometric Figures in Three Colors on Three Colors and All Their Combinations
1978.05
A Circle with Lines in Two Directions
1979.01
Grids and Color
1980.01
Color Grids. All Vertical & Horizontal Combinations of Black, Yellow, Red & Blue Straight, Not-Straight & Broken Lines
1980.02
Six Geometric Figures & All Their Combinations
1980.03
All One, Two, Three, Four, Five & Six Part Combinations of Six Geometric Figures
