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

Black ink on off-white wove paper

Graphite on paper

Graphite on paper

Pastel and graphite on layered cream modern laid paper

Graphite on off-white wove paper

Black ink and gray wash on off-white laid paper

Graphite on off-white wove paper

Graphite on tan wove paper

Graphite on off-white wove paper

Graphite on cream laid paper

Graphite on paper

Black ink on off-white wove paper