Untitled (North American air distances, left page); Untitled (metric information, right page)

Watercolor on off-white wove paper

Watercolor and black ink over graphite on cream paper

Graphite on paper

Graphite on paper

Watercolor over graphite on off-white wove paper

Graphite on cream wove paper

Watercolor over graphite on off-white wove paper

Black ink, graphite, and watercolor on cream wove paper

Graphite on off-white 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

Colored marker on paper

Ink on paper