Office and Factory Buildings, Cali, Colombia, 1945: Plot plan (1" =50')

Crayon on paper

Graphite on off-white wove paper

Graphite on off-white wove paper

Charcoal on brown wove paper

Black ink and graphite on off-white wove paper

Graphite on cream wove paper

Graphite on darkened off-white wove paper

Colored crayons on paper

Black ink over graphite erasures on off-white laid paper

Black crayon and ink ; black crayon on paper

Off-set pastel and watercolor on white wove paper

Graphite and charcoal on off-white wove paper