Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: State of rough excavation: plan (1" = 1'-0")

Black ball-point ink on buff modern laid paper

Graphite on cream wove paper

Watercolor over graphite on heavy off-white wove paper

Sketchbook with black fabric-covered cardboard covers, held by two metal rings

Black ink on slide film

Black crayon on paper

Watercolor on cream wove paper

Incised line and Aquarelle on white wove paper

Graphite on brown wove paper

Black ink and black wash on off-white wove paper

Graphite and ink on paper

Black ink on off-white wove paper