Furnishing for Kass Country Residence, Berlin-Zehlendorf, 1932: Sofa: perspective sketch and elevation

Black marker on paper

Black ink on off-white wove paper, folded

Black and orange marker on paper

Blue pen on paper

Graphite and colored crayons on paper

Black and colored crayons on paper

Graphite, colored pencil, and colored crayons on paper

Graphite on paper

Colored marker and watercolor on paper

Watercolor and graphite on paper

Black marker on paper

Colored marker and purple pen on paper