Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Upper pool: plan and sections

Colored crayons on paper

Black ink and white-gray gouache on grayish-white textured wove paper

Watercolor on cream wove paper

Graphite on white wove paper

Graphite on off-white wove paper

Graphite on paper

Graphite on darkened off-white wove paper

White and black conté crayon on gray wove paper

Charcoal on off-white laid paper

Black ink and graphite on translucent vellum paper

Graphite on white wove paper

Graphite on off-white laid paper