Untitled (Torsion Study 13)

Black ink on faded brown Japanese paper

Black chalk over graphite on brown wove paper

Black felt-tipped pen on yellowed newsprint paper

Black fiber-tip pen, graphite, green and orange colored pencil on tracing paper

Graphite and white pastel on blue-buff wove paper

Natural raw powdered pigment (raw umber), turpentine wash, conte crayon and charcoal, with spray fixative and possibly spray varnish, on [off-white wove?] paper

Watercolor and graphite on white wove paper

Black ink and charcoal on cream laid paper

Graphite on buff wove paper, mounted on off-white wove paper

Graphite on paper

Graphite on buff wove paper

Graphite on off-white wove paper