Office and Factory Buildings, Cali, Colombia, 1945: Locker and office units: plans (1/8" = 1'-0")

Silverpoint and Italian white marble heightening on off-white modern wove paper, prepared with bohemian terre verte, lead white, calcined bone, and rabbit skin glue

Graphite on cream wove paper

Graphite on paper

Watercolor over black chalk on off-white illustration board

Black ink and gray wash on off-white laid paper

Graphite on translucent wove paper

Gold ink on black tissue paper

Watercolor, graphite, and red crayon on off-white wove paper

Charcoal and colored pencil on cream laid paper

Oil crayon, colored pencil and graphite on paper

Charcoal and black and white crayon on white wove paper

Watercolor on off-white wove paper