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

Graphite on off-white wove paper

Colored crayons on paper

Black ink and black crayon on off-white laid paper

Graphite on paper

Ink and graphite on paper

Graphite on buff laid paper

Watercolor and graphite on off-white wove paper

Watercolor on off-white wove paper

Graphite on paper

Watercolor over graphite on off-white wove paper

Graphite on off-white wove paper

Watercolor over graphite on off-white wove paper