Office and Factory Buildings, Cali, Colombia, 1945: Factory locker rooms: plan, elevations, sections, details (1/8" and 1"= 1'-0")

Black chalk on cream laid paper

Chalk on paper

Black ink and watercolor pencil on cream laid paper, edges taped

Opaque watercolor on cream card stock

Charcoal on paper

Graphite on off-white wove paper

Black ink and watercolor pencil on white wove paper

Lithographic crayon on cream coated wove paper

Black conté crayon on ivory tracing paper

Graphite on off-white wove paper

Graphite on blue wove paper

Graphite on paper