Friedrich Frobel House, Bad Liebenstein, 1924: Basement plan, 1:200

Blue pen and pink marker on paper

Black ink and charcoal on darkened cream laid paper

Black crayon on paper and mounted

Graphite and ink on paper

Colored marker on paper

Black crayon on paper

Blue crayon on paper

Graphite on paper

Graphite on paper

Charcoal on paper

Graphite on paper

Colored crayons on paper