Research Project on Economical Apartment Design, 1930: Building type IIIb: first-third floor plans, 1:50

Tempera on paper

Paper

Graphite on paper

Graphite on paper

Colored marker on paper

Graphite on paper

Watercolor on brown wove paper

Green crayon on paper

Black crayon on paper

Black crayon on paper

Black crayon on paper

Black crayon on paper