"Haus Sonnenfang" Sanatorium, Berlin, 1931: North and south elevations

Black crayon on paper

Colored marker on paper

Black ink and watercolor on cream laid paper

Colored and metallic marker on paper

Stamp ink on paper

Black crayon on paper and mounted

Graphite and watercolor on paper

Black crayon on paper

Black, blue, and yellow crayons on paper and mounted

Graphite on paper

Graphite and blue crayon on paper

Colored marker on paper