Lines & Color. Straight, Not-Straight & Broken Lines Using All Combinations of Black, White, Yellow, Red and Blue for Lines and Intervals$500
(i) Three Squares with a Different Colour in Each Half Square (Divided Vertically and Horizontally) (ii) Postcard of Regent Street with Drawing$500
Lines of One Inch in Four Directions and All Combinations , Landfall Press, Chicago (Krakow 1971.16)$500