Bahner Residence, Berlin, Klein-Machnow, 1933: Exterior stairway and glass wall: plan, elevation, sections, and details, 1:1, 1:10, 1:20

Graphite and colored pencil on paper

Black crayon on paper

Graphite and red pencil on paper

Colored marker on paper

Graphite on paper

Graphite on paper

Black marker on paper

Opaque watercolor and graphite on paper

Colored crayons on paper and mounted

Gray marker on paper

Graphite on paper

Black crayon on paper