Untitled (bleed-through of previous page and color transfer, left page); Untitled (notes and measurements for light sculptures, right page)

Brown ink and brown wash over black chalk on off-white antique laid paper, laid down to pale green laid paper

Black ink over graphite on cream laid paper

Charcoal on paper

Colored marker on paper

Black crayon on cream wove paper

Opaque watercolor and brown ink with touches of transparent watercolor on off-white antique laid paper, mounted, triple framing line in black, gold, and brown

Black chalk and charcoal on tracing paper

Graphite on off-white wove paper

Black ink, gray wash, and white gouache on blue-green antique laid paper

Leather bound sketchbook

Graphite and black and white chalk on gray-brown wove paper

Paper