Competition Entry for School, Schwarzerden-Rhön, 1930: Ground floor plan, 1:200

Watercolor on paper

Graphite, black oil pastel, and colored pencil on paper

Green and purple crayon on paper

Mixed media

Graphite on paper

Black, brown and yellow crayon ; black and blue crayon on paper

Graphite on paper

Graphite on paper

Black crayon on paper

Black ink on cream laid paper, mounted on cream card

Colored marker and black pen on paper

Graphite on paper