Untitled (bleed-through of previous page, left page); Untitled (view from "Japan International House," right page)

Graphite on paper

Graphite on paper

Black crayon on paper

Oil paint on offset lithograph, 1989 edition of Flora de la Real Expedición Botánica del Nuevo Reino de Granada (1783-1810)

Graphite on buff wove paper

Brown marker on paper

Black and red chalk on cream antique laid paper

Gouache on paper, mounted on card

Black ink on cream antique laid paper

Graphite on off-white wove paper

Watercolor over graphite on off-white wove paper

Colored and metallic marker on paper