Furnishing for Kass Country Residence, Berlin-Zehlendorf, 1932: Sketch of texture studies

Graphite on paper

Black marker on paper

Graphite on back of letter

Graphite on paper

Colored marker on paper

Black crayon on paper

Colored marker on paper

Black marker on paper

Casein and PVA paint with putty on pulp board

Graphite on paper

Graphite on paper

Opaque watercolor on paper