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

Ink and applied type on paper

Black marker on paper

Black marker and opaque watercolor on paper

Colored marker on paper

Conté crayon with scratchwork on white wove paper

Colored marker on paper

Paper

Colored marker on paper

Graphite on cream wove paper

Colored marker on paper

Colored marker on paper

Graphite on paper