Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Suggested revision of study terrace, first floor: elevations, section, and details (1/4" and 3" =1"-0" )

Charcoal on paper

Watercolor and graphite on cream wove paper

Watercolor on off-white wove paper

Charcoal on beige laid paper

Black ink and gray wash on cream laid paper; verso: gray wash

Black ink on off-white wove paper

Watercolor and oil over graphite on off-white wove paper

Pastel on off-white wove paper

Graphite on off-white wove paper

Graphite on off-white wove paper

Charcoal on paper

Black chalk on off-white laid paper