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

Ink and graphite on paper

Gouache and collage element on wallpaper

Colored marker on paper

Colored marker on paper

Graphite on tan wove paper, squared

Crayon on paper

Graphite and ink on paper

Colored marker on paper

Black and red marker on paper

Graphite on paper

Black and red marker on paper

Colored marker and blue pen on paper