Competition Entry for Coeducational Vocational School, Berlin-Cöpenick, 1930: First floor plan, 1:200

Graphite and watercolor on paper

Black and red marker and black pen on paper

Black crayon on paper

Colored marker on paper

Graphite and colored crayons on paper

Black marker on paper

Mixed media

Black crayon on paper

Acrylic(?), flame-treated on pigment-coated card

Black crayon on paper

Colored marker on paper

Black, brown and blue crayon on paper