Research Project on Economical Apartment Design, 1930: Building type IIIb: ground floor plan, 1:50

Colored crayons on paper

Black crayon on paper

Black marker, paper, and adhesive on paper

Graphite on paper

Black crayon on paper

Black crayon on paper

Graphite on paper

Graphite and blue crayon on paper

Black marker on paper

Colored marker on paper

Black marker on paper

Black ink on tan wove paper