Competition Entry for "Growing House" for "Sun, Air, and House for All" Exhibition, Berlin, 1932: Isometric sketches

Graphite with purple and blue crayon on paper

Graphite on paper

Graphite on paper

Black crayon on off-white wove paper

Black and red marker, black pen on paper, adhesive, and graphite on paper

Graphite on paper

Blue marker and black pen on paper

Graphite on paper

Black crayon on paper

Graphite on paper

Black crayon on paper

Ink on paper