Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Plot plan with retaining wall details, (1" =20' and 1/4" = 1'-0")

Brown and black paint on cream wove paper

Black ink and graphite on off-white wove tracing paper

Graphite on cream wove paper pastedown of sketchbook cover

Black ink and yellow and black chalk on off-white wove paper; verso: black ink

Graphite on paper

Black ink, charcoal, and colored pencil on cream laid paper

Black ink on off-white wove paper

Watercolor over graphite on off-white wove paper

Watercolor and white gouache over graphite and blue crayon on buff laid paper

Graphite on off-white wove paper

Black ink and gray wash on cream laid paper, mounted to gray wove paper

Watercolor and white gouache on cream wove paper