Furnishing for Kass Country Residence, Berlin-Zehlendorf, 1932: Interior perspective sketch

Graphite with blue and blue-green crayon on paper

Black marker on paper

Black marker on paper

Graphite on paper

Ink on paper

Black marker on paper

Graphite on paper

Graphite on paper

Colored marker and black pen on paper

Crayon on paper

Colored marker and black pen on paper

Colored marker on paper