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

Colored marker and blue pen on paper

Graphite and watercolor on paper

Black ink and charcoal on cream laid paper

Colored marker on paper

Colored crayon on paper

Graphite on cream wove paper

Graphite on paper

Black crayon on paper

Graphite and crayon on paper

Colored marker on paper

Black ink and graphite traces on off-white wove paper

Graphite on paper