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

Graphite on green card

Watercolor, graphite, black ink, and colored chalk on layered paper and translucent plastic, mounted to gray-brown cardboard.

Watercolor over graphite on off-white wove paper

Ink on translucent wove paper

Graphite on paper

Graphite on off-white wove paper

Graphite on paper

Graphite on off-white wove paper

Black ink, metallic colored pencil and metallic paint on cream wove translucent paper

Graphite on off-white wove paper

Graphite on off-white wove paper

Red and black chalk on off-white tracing paper