Bahner Residence, Berlin, Klein-Machnow, 1933: Sketches of ground floor plan and interior perspective, 1:100

Watercolor on paper

Graphite on paper

Black and red marker on paper

Black crayon on paper

Gouache, watercolor, and graphite on tan cardboard

Flower stains on paper

Graphite and colored pencil on paper

Blue pen on paper

Graphite on paper

Ink and graphite on paper

Blue crayon on paper

Black and gray marker on paper