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

Graphite on cream wove paper

Black and red chalk on white wove sketchbook paper

Colored crayons on paper

Watercolor and graphite on off-white wove paper

Pastel on cardboard

Black ink on off-white wove paper

Graphite on off-white wove paper

Graphite on paper

Colored crayons on paper and mounted

Graphite on paper

Turpentine wash with oil on white board

Watercolor and white gouache on blue-flecked buff wove paper