Studies for Soldiers, "Death and Victory," Widener Library, Harvard University

Black ink on cream wove paper

Colored marker and black pen on paper

Brown ink and brown wash over black chalk on cream antique laid paper

Graphite on paper

Colored marker on paper

Black and white chalk on tan antique laid paper, framing lines in black ink, laid down on off-white antique laid paper

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

Black and white chalk on dark tan antique laid paper

Colored marker on paper

Colored and metallic marker on paper

Watercolor and white gouache over graphite on off-white wove paper, mounted overall to beige cardboard

Blue pen on paper