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

Graphite on paper

Black and colored crayons on paper

Colored marker and graphite on paper

Graphite and colored pencil on paper

Graphite and colored pencils on paper

Graphite on paper

Graphite with blue and gray crayon on paper

Black marker on paper

Colored and metallic marker and black pen on paper

Graphite on paper

Blue crayon on paper

Black crayon on paper