Study for "Incomplete Red Neon Square on Exterior Corner," University of Massachusetts, Amherst

Graphite with black and gray crayon on paper

Black ink, charcoal, and watercolor on cream laid paper, edges taped

Graphite on darkened off-white wove paper

Brown marker on graph paper

Black ink on off-white wove paper

Black and red crayon on thin off-white wove paper

Charcoal and sanguine on paper

Fiber-tipped ink on discolored off-white wove paper

Colored chalk, graphite, metallic pigments, colored pencil on off-white wove paper (lined notebook paper), adhered to Japanese paper with cellophane tape and metal fasteners

Red and white chalk on gray modern laid paper

Black ink and blue gouache on off-white card

Graphite on off-white wove paper