Competition Entry for "Growing House" for "Sun, Air, and House for All" Exhibition, Berlin, 1932: Sketches of plan and isometrics

Black and red marker on paper

Graphite on paper

Colored marker on paper

Graphite and red crayon on paper

Graphite on paper

Black ink on off-white wove paper

Colored marker and black pen on paper

Black crayon on paper

Black and red marker on paper

Graphite on paper

Colored marker on paper

Charcoal on paper