Maurer Residence, Berlin-Dahlem, 1933: Coal shute: elevation and section, 1:10

Graphite on paper

Black crayon on cream wove paper

Ink on paper

Graphite on paper

Charcoal, black ink, and colored pencil on cream laid paper

Graphite on paper

Black pen and red marker on yellow ruled paper adhered to paper

Graphite on paper

Black marker on paper

Graphite on paper

Black crayon on paper

Colored marker on paper