Halle Civic Center, Museum, and Stadium, Halle, 1927-1928: Civic center, acoustical study: floor plan, 1:200

Black ink and graphite traces on paper

B/w photocopy, black ink, and adhesive on paper

Graphite on cream wove paper

Colored marker on paper

Graphite on paper

Black and olive crayon on paper

Graphite and ink ; graphite on paper

Graphite on paper

Graphite on paper

Graphite and colored pencil on paper

Colored marker on paper

Graphite on off-white wove paper