Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Acoustic ceiling plans (3" , 1/2" = 1'-0")

Graphite on off-white wove paper

Watercolor and white gouache on off-white wove paper

Graphite on off-white wove graph paper

Opaque and transparent watercolor on cream, thick, rough, wove paper

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

Graphite on paper

Tempera on acetate

Watercolor over graphite on off-white wove paper, mounted to matboard

Graphite on off-white wove paper

Black ink and touches of graphite on white wove paper, mounted to cardboard

Charcoal on off-white laid paper

Graphite on paper