Untitled (blank with graphite and color transfer, left page); Untitled (designs for Condor planes, right page)

Brown watercolor, black ink and black chalk on cream wove paper

Charcoal on cream laid paper

Watercolor over graphite on off-white wove paper

Watercolor on cream wove paper

Black ink on ivory wove paper

Graphite on paper

Graphite on off-white wove paper

Graphite and colored pencils on gray wove paper

Graphite and white pastel on gray wove paper

Colored marker and black pen on paper

Graphite and colored crayons on off-white wove paper

Opaque watercolor on paper