Study of a Knee; verso: Head of a Bearded Man

Graphite on paper

Black ink on heavy off-white wove paper

Black crayon on paper

Acrylic, graphite, and computer print-out on off-white wove paper

Watercolor over graphite on off-white wove paper

Graphite and watercolor on white paper

Colored marker on paper

Watercolor on off-white Japanese paper

Graphite on cream wove paper

Colored marker on paper

Black chalk or charcoal and white chalk on tan paper

Graphite and blue crayon on paper