Prefabricated Copper Houses, 1931-1932: Building types 2 and 2a: ground floor plan

Graphite on paper

Ink and colored crayons on paper

Graphite, ink, wash, touches of white on paper

Ink on vellum

Graphite on paper

Black, blue, and yellow crayon on paper

Graphite on paper

Ink on paper

Colored marker and black pen on paper

Graphite on paper

Graphite, watercolor, gouache, and black and yellow inks on off-white wove paper

Graphite with colored crayons on paper