Office and Factory Buildings, Cali, Colombia, 1945: Factory locker rooms: plan, elevations, sections, details (1/8" and 1"= 1'-0")

Watercolor over graphite on cream wove paper; verso: black ink and graphite

Black ink on tan wove paper

Graphite on translucent wove paper

Watercolor on cream wove paper

Black ink on tracing paper

Watercolor and white gouache over graphite on buff laid paper

Charcoal on cream laid paper

Graphite on off-white wove paper

Graphite on off-white wove paper

Watercolor on white wove paper mounted to canvas mounted to a stretcher

Gouache, watercolor, brown ink and graphite on cream wove notebook paper

Charcoal on off-white laid paper