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

Ink on paper with torn edges

Graphite and charcoal on paper

Graphite on paper

Black crayon and ink on paper

Black crayon on paper

Black crayon on paper

Opaque watercolor, paper, graphite, and adhesive on paper

Colored marker and black pen on paper

Graphite and blue crayon on paper

Graphite on paper

Brown ink and wash on cream wove paper

Black and blue marker on paper