Bahner Residence, Berlin, Klein-Machnow, 1933: Sketch of ground floor and first floor plans

Colored marker on paper

Graphite and colored pencils on paper

Graphite on paper

Graphite on paper

Black and blue marker on paper

Graphite on paper

Black marker on paper

Black and colored crayons on paper

Graphite on paper

Graphite on paper

Graphite and watercolor on white wove paper

Black ink, gray wash, and gouache on tan card