Office and Factory Buildings, Cali, Colombia, 1945: Office unit: details (3/8" and 1" = 1'-0")

Watercolor, black ink and gray wash on ivory wove paper

Colored pencil on gray-green laid paper

Black ink on cream wove paper

Watercolor over graphite on heavy white wove paper

Graphite on paper

Colored crayons on paper

Graphite on paper

Graphite on paper

Ink on paper

Graphite on paper

Graphite on off-white wove paper

Charcoal and purple and white chalk on brown wove paper