Study for "Fragments of Blue Neon Circles and Squares on a Pink Wall," University of Massachusetts, Amherst

Graphite on darkened off-white wove paper

Watercolor on off-white wove paper

Graphite on paper

Graphite on off-white wove paper

Graphite on paper

Black ink on off-white wove paper (recto and verso)

Black ink on off-white wove paper

Watercolor, gouache, black ink and graphite on cream wove paper mounted on board

Graphite on off-white wove paper

Watercolor and graphite on off-white wove paper

Charcoal and black ink on off-white wove paper; verso: charcoal

Watercolor on off-white laid paper