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

Black crayon on tan wove paper

Black marker on paper

Graphite on paper

Black crayon on paper

Graphite on paper

Black crayon on paper

Black crayon on off-white wove on paper

Black and green marker on paper

Black crayon on paper

Colored crayons on paper

Graphite and colored pencil on paper

Graphite on paper