Untitled (blank, left page); Untitled (blank, right page)

Black pen, paper, and adhesive on paper

Charcoal and black ink on cream laid paper

Brown ink over graphite on white antique laid paper

Brown ink over black chalk on cream antique laid paper

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

Graphite on paper

Ink, wash, and gouache, spatter-painted, on paper

Brown ink and watercolor over graphite on off-white wove paper

Graphite on paper

Black marker on paper

Blue and black pen and black marker on paper

Black crayon on paper