"Haus Sonnenfang" Sanatorium, Berlin, 1931: Ground floor plan, 1:500

Ink and wash on paper

Black and metallic marker, printed architectural drawing, paper, and adhesive on paper

Graphite and red pencil on paper

Colored and metallic marker on paper, adhesive, and colored marker on paper

Graphite and watercolor on paper

Black ink on paper

Graphite on paper

Recto: transparent and opaque watercolor, black and blue inks, graphite, tea and oil on white wove paper; verso: transparent watercolor and tea on white wove paper

Black crayon on paper

Graphite on paper

Black crayon on paper, mounted to paper

Graphite and watercolor on paper