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

Black ink on cream wove paper

Graphite on off-white wove paper

Black ink and charcoal on cream laid paper

Graphite and white pastel on blue-buff wove paper

Charcoal on heavyweight gray wove paper

Transparent and opaque watercolor and graphite on off-white wove paper

Black ink, charcoal, watercolor, and watercolor pencil on beige laid paper, edges taped

Graphite and ink on paper

Watercolor and graphite on off-white wove paper

Black ink and brown chalk on gray wove paper mounted to cardboard

Oil crayon, colored pencil and graphite on paper

Black wax crayon on tan wove paper