International Academy of Philosophy, Erlangen, 1924: Scheme B: section through lecture hall

Ink, wash, gouache, and collage elements on paper

Paper

Colored marker and graphite on paper

Black marker and blue pen on paper

Black marker on paper

Black marker on paper

Graphite and watercolor on paper

Black marker on paper

Black pen on paper, adhesive, and sticker on paper

Black and blue crayon on paper

Graphite and colored crayon on paper

Colored crayons on paper