"Haus Sonnenfang" Sanatorium, Berlin, 1931: First-fourth floor plan, 1:500

Graphite and colored crayons on paper

Colored crayons on paper

Colored marker on paper

Black ink, charcoal, and colored pencil on cream laid paper

Graphite on paper, mounted

Black and yellow crayon on paper

Colored marker on paper

Black marker on paper

Ink and graphite on paper

Graphite on paper

Ink, colored wash, and applied type on paper

Ink on paper