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

Colored marker and blue ink on paper

Black marker, paper, and adhesive on paper

Black crayon on paper

Graphite on paper

Graphite and colored pencils on paper

Black, aqua, and brown crayon on paper

charcoal, graphite, black chalk, metallic paint, watercolor, and gouache on off-white card, folded

Watercolor and graphite on paper

Graphite on paper

Colored and metallic marker on paper

Colored marker on paper

Black and blue marker on paper