"Haus Sonnenfang" Sanatorium, Berlin, 1931: Typical bedroom plan, 1:100

Graphite, colored pencil, white chalk, and charcoal on paper

Graphite with blue, green and black crayon ; graphite on paper

Colored marker on paper

Black ink over graphite on off-white wove paper

Graphite on paper

Ink and colored crayons on paper

Mixed media

Colored marker and green pen on paper

Colored marker on paper

Graphite and transparent watercolor on cream wove paper

Graphite on paper

Black, blue, and red marker on paper