Office and Factory Buildings, Cali, Colombia, 1945: Office unit: details (3/8" and 1" = 1'-0")

Black ink on off-white wove paper, mounted to tissue, mounted to an index card, taped to off-white cardboard.

Graphite on buff wove paper

Graphite on paper

Graphite on tracing paper

Crayon on paper

Graphite on paper

Black ink on off-white wove paper

Handmade dyed paper, watercolor and thread collage

Watercolor and graphite on white wove paper

Graphite and white gouache on off-white wove paper

Graphite on thin off-white wove paper

Watercolor and gouache over graphite on buff laid paper