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

Ink and graphite on paper

Paper

Sketchbook with green-paper-covered cardboard covers

Black ink over graphite on thin cream tracing paper, mounted to cardboard

Graphite on cream wove paper

Graphite on paper

Graphite on cream wove paper

Unframed drawing; ink on paper

Ink

Colored marker on paper

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