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

Graphite on paper

Ink and casein (?) on white wove paper

Graphite on paper

Graphite on paper

Black ink, graphite, and yellow chalk on off-white wove paper

Black ink on cream wove paper

Graphite on cream wove paper

Graphite on paper

Black ink and graphite on tracing paper with acetate overlays

Black crayon on cream wove paper mounted overall to off-white cardboard

Watercolor and gouache on off-white wove paper

Graphite on green prepared paper