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

Graphite on paper

Graphite on paper

Graphite on tan wove paper

Black crayon on paper

Black crayon on paper

Graphite on paper

Ink on paper

Watercolor and graphite on cream wove paper mounted to off-white card

Colored marker on paper

Tusche on tan wove paper

Graphite on paper

Blue marker on paper