Research Project on Economical Apartment Design, 1930: Building type IIb: section, 1:50

Red and black inks and applied type on paper

Ink and graphite on paper

Colored marker on paper

Colored marker on paper

Colored crayons on paper

Black ink, graphite

Black and red inks and applied type on paper

Graphite on paper

Ink with colored crayons on paper

Collage on cardboard

Colored marker on paper

Black crayon on paper