Office and Factory Buildings, Cali, Colombia, 1945: Office unit: plan, elevations, section (1/16" and 1/8" = 1'-0")

Graphite on darkened off-white wove paper

Charcoal on off-white laid paper

Graphite on off-white laid paper

Graphite and charcoal on off-white wove paper

Graphite on paper

Watercolor on off-white wove paper

Charcoal, oil stick, acrylic, and Liquid Paper on white wove paper

Graphite on paper

Graphite on off-white wove paper

Black crayon on thin buff wove paper

Graphite on off-white wove paper

Graphite on off-white wove paper