"Haus Sonnenfang" Sanatorium, Berlin, 1931: Ground floor plan, 1:500

Colored marker on paper

Black crayon on paper

Colored crayons on paper

Graphite on paper

Colored marker on paper

Black marker, blue ink, paper, and adhesive on paper

Gouache on paper

Black crayon on tan wove paper

Graphite and colored pencil on paper

Colored marker and graphite on paper

Black marker and adhesive on paper

Black crayon and ink ; black crayon on paper