Untitled [Mountains and Hills by the Sea]

Gouache on paper

Brown ink and brown wash, with later addition of pale red-colored wash, on cream antique laid paper

Graphite on paper

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

Charcoal on cream laid paper

Black ink, black wash, black chalk and graphite (?) on cream antique laid paper, bordered in brown ink, laid down overall to cream antique laid paper

Gouache and black ink over graphite on gray-blue wove paper

Graphite on cream wove paper

Graphite on paper

Black ink on white wove paper

Ink on paper

Red chalk, brown ink and brown wash on cream antique laid paper