Constellation Y, 1968

Two rounded equilateral triangles top aligned side by side with a flat edge facing upwards, below and centered, nested in between them is a rounded rectangular canvas. The three canvases have shapes on them painted to create the illusion of another centered triangle in dark cyan and black. The remaining outer edges of the canvases are painted with primary yellow, red, and blue
Acrylic on canvas, 45½ x 63 in. 115.6 x 160 cm.