Apartment House for Interbau Exhibition, Berlin-Hansaviertel, 1955-1957: Perspective sketch

Graphite and transparent watercolor moderately textured white wove paper

Graphite on orange wove paper

Graphite on off-white wove paper

Ink, colored crayon, gouache, and graphite traces on off-white laid paper

Black ink on brown laid paper

Charcoal on cream laid paper

Charcoal on cream laid paper

Graphite on off-white wove paper

Black ink on thin off-white wove paper

Graphite on off-white Japanese paper

Black ink, gray gouache, and red-brown watercolor on off-white laid paper; verso: black ink

Graphite on cream wove paper