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

Sketchbook with cardboard covers and spiral wire binding

Acrylic on buff wove paper

Graphite and gray wash on cream wove paper

Graphite on paper

Black ink and graphite on thin buff wove paper

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

Transparent and opaque watercolor and graphite on white wove paper

Black ink on tan wove paper

Black crayon on cream wove paper

Spiral bound sketchbook

Graphite on off-white wove paper

Graphite and gesso on paper