Untitled (bleed-through from previous page with graphite transfer, left page); Untitled (designs for Condor planes, right page)

Black marker on paper

Colored marker on paper

Sketchbook with cardboard backing, heavy paper cover, and spiral wire binding

Opaque watercolor and graphite on paper

Watercolor over graphite on off-white wove paper

Graphite on paper

Brown ink and brown and gray-brown wash on cream modern laid paper; verso: black chalk and black ink

Graphite on heavy cream wove paper

Colored marker and blue pen on paper

Paper

Brown ink over graphite (?) on off-white antique laid paper

Graphite on paper