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

Graphite on parchment

Black crayon on paper

Graphite on paper

Graphite on off-white wove paper

Graphite and red pencil on paper

Graphite on paper

Graphite on off-white wove paper

Brown ink, with brown wash on cream antique laid paper

Colorer marker (transfer) on paper

Graphite on paper

Pastel on paper

Graphite on paper