Bahner Residence, Berlin, Klein-Machnow, 1933: Staircase window: elevation and section, 1:20

Graphite on paper

Graphite on paper

Colored marker on paper

Colored marker on paper

Black ink on transparent paper

Colored crayons on paper and mounted

Graphite on paper

Black and red marker on paper

Graphite on off-white wove envelope

Black marker and opaque watercolor on paper

Orange, purple, and green crayon on paper

Black crayon on paper