Research Project on Economical Apartment Design, 1930: Building type IIb: section, 1:50

Black crayon on off-white wove paper and mounted to cream wove paper

Graphite on paper

Graphite on paper

Black pen and metallic marker on paper

Graphite on paper

Black crayon on paper

Graphite on paper

Graphite on paper

Graphite on envelope

Black marker on paper

Black crayon on paper, mounted to paper

Ink and applied type on paper, splatter-painted