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

Colored marker and black ink on paper

Graphite on paper

Paper

Colored crayons ; graphite on paper

Colored marker on paper

Colored crayons on paper

Graphite on paper

Paper

Black marker on paper

Charcoal on paper

Graphite and blue crayon on paper

Graphite on paper