Untitled (blank, left page); Untitled (designs for Condor planes, right page)

Black marker and opaque watercolor on paper

Brown ink over black chalk on white antique laid paper

Red marker on paper

Graphite and colored pencil on paper

Brown and black ink, gray wash, and black chalk, on cream antique laid paper, with a framing line in brown ink

Graphite on paper

Colored crayons on paper and mounted

Black and red marker on paper

Black ink of off-white wove paper

Charcoal on off-white laid paper

Opaque watercolor over graphite on tan illustration board, prepared with white ground

Graphite on off-white wove paper