Office and Factory Buildings, Cali, Colombia, 1945: Office unit: construction and millwork details (1/4", 1", 1 1/2" and 6" = 1'-0")

Gouache and graphite on white Fome-Cor

Black ink on off-white wove paper (recto and verso)

Black crayon and black ink on off-white wove paper

Oil on paper

Graphite on off-white wove paper

Crayon on paper

Black ink and charcoal on beige laid paper

Black chalk on off-white wove paper

Graphite on off-white wove paper

Black ink on off-white wove paper

Knotted thread, tape measures, eyelets

Mixed media on paper