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

Colored marker on paper

Graphite on paper

Graphite on paper

Watercolor and gouache on brown wove paper mounted to board

Black chalk on cream antique laid paper

Black and gray wash and white gouache on light brown antique laid paper

Graphite on blue-gray wove paper

Black and white chalk on buff antique laid paper

Graphite on darkened off-white wove paper

Graphite and colored pencils on paper

Opaque watercolor over graphite on off-white wove paper

Brown ink, brown and gray wash, and black chalk on parchment