Office and Factory Buildings, Cali, Colombia, 1945: Elevations (1/16" = 1'-0")

Black ink on off-white wove paper

Black chalk and graphite on off-white wove paper; verso: graphite and charcoal

Black chalk and charcoal on off-white laid paper

Graphite on off-white wove paper

Crayon on paper

Black ink on paper

Watercolor on cream wove paper

Watercolor over graphite on off-white wove paper

Black crayon and ink on paper

Watercolor on paper

Graphite on off-white wove paper

Black ink on off-white wove paper