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

Black crayon on paper

Graphite on paper

Watercolor on paper

Graphite on paper

Graphite on paper

Graphite on paper

Black and blue pen on paper, black and white photocopy, and adhesive on paper

Black crayon on paper

Graphite on paper

Graphite on paper

Black crayon on paper

Colored crayons on paper