Competition Entry for School, Schwarzerden-Rhön, 1930: Isometric, 1:200

Graphite and green pencil on paper

Black marker on paper

Typed black ink on cardstock, adhesive, and black marker on paper

Graphite and charcoal on paper

Colored crayons on paper

Colored marker on paper

Graphite on paper

Graphite with yellow, green, and black crayon on paper

Graphite on paper

Graphite on paper

Graphite and ink ; graphite on paper

Black and colored crayons on paper