Office and Factory Buildings, Cali, Colombia, 1945: Elevation (1/16" = 1'-0")

Black ink on off-white wove paper

Watercolor and black crayon on off-white wove paper mounted to cardboard

Acrylic, graphite, and computer print-out on off-white wove paper

Black ink on off-white wove paper

Charcoal and graphite on off-white laid paper

Watercolor and graphite on thin cream wove paper

Black ink on tan wove paper

Graphite on paper

Graphite on cream wove paper

Sketchbook with beige cloth-covered cardboard covers

Black ink, watercolor, and metallic paint over graphite on heavy buff wove paper

Graphite on off-white wove paper