Office and Factory Buildings, Cali, Colombia, 1945: Office unit: plans, elevations, details (1 1/2" = 1'-0")

Black ink and white gouache over graphite on off-white wove paper

Black colored pencil on tan wove paper

Black chalk on buff tracing paper

Watercolor on off-white wove paper

Crayon, gouache (?), watercolor and graphite (?) on white wove paper

Graphite on off-white wove paper

Graphite and black chalk on buff laid paper

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

Turpentine wash with oil on white board

Sketchbook with beige cloth-covered cardboard covers

Watercolor and graphite on off-white wove paper

Graphite on paper