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

Charcoal on off-white laid paper

Graphite on paper

Black ink over graphite on cream board

Graphite and marker on white wove translucent paper

Graphite on buff wove paper

Watercolor and graphite on white wove paper

Watercolor and graphite on off-white wove paper

Sketchbook with cardboard backing, heavy paper cover, and sprial wire binding

Graphite on paper

Charcoal on cream laid paper

Black ink on graph paper

Charcoal on faded blue laid paper