Bahner Residence, Berlin, Klein-Machnow, 1933: Exterior stairway: plan and elevation, 1:20

Colored crayons on paper

Solvent on printed paper

Graphite on paper and mounted

Black marker on paper

Graphite on off-white wove paper

Colored marker on paper

Ink and applied type on paper

Black crayon on paper

Black pen on paper

Colored marker on paper

Black crayon on paper

Graphite with colored crayons on paper