Office and Factory Buildings, Cali, Colombia, 1945: Office unit: plans, elevations, details (1 1/2" = 1'-0")

Graphite on off-white wove paper

Charcoal on cream laid paper

Graphite and ink on paper

Watercolor and graphite on white wove paper

Graphite on cream wove paper

Watercolor over graphite on off-white wove paper, mounted to off-white card

Black ink, blue-gray watercolor, brown wash, white gouache, collage, graphite, and touches of red chalk on cream wove paper

Graphite on cream wove paper

Watercolor and white gouache over graphite on off-white wove paper

Watercolor over graphite on off-white wove paper

Black ink and graphite on off-white wove paper

Collage with multiple drawing media on cream wove paper