Sketch for the 1967 performance at the Walker Art Center entitled "The Proliferation of the Sun"

Graphite on paper, mounted

Black crayon on paper

Colored marker on paper

Graphite on paper

Graphite and transparent watercolor on cream wove paper

Red and black marker on paper

Black crayon on paper

Colored marker on paper

Black marker on paper

Black marker on paper

United Airlines napkin and adhesive on paper

Blue and green marker on paper