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

Black ink on cream wove paper

Watercolor and black ink on off-white wove paper

Conté crayon, charcoal, graphite, and collaged paper on white wove paper

Black ink on off-white wove paper

Graphite on paper

Pastel and graphite on white wove paper

Graphite on cream wove paper

Charcoal on layered cream modern laid paper

black crayon, ink, with blue and orange watercolor; verso: black crayon and ink on paper

Pastel on composition board

Graphite on paper

Colored crayons on paper