Friedrich Frobel House, Bad Liebenstein, 1924: Plan of roof level, 1:200

Black crayon on paper

Black marker on paper

Black crayon on paper

Opaque watercolor on wove paper

Brown crayon on paper

Graphite on paper

Black crayon on paper

Graphite on paper

Colored marker, paper, and adhesive on paper

Colored marker on paper

Graphite on paper

Gray crayon on envelope