Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Flower box on first terrace: plan and sections (1 1/2" = 1'-0")

Graphite on paper

Black ink and black crayon on off-white laid paper

Watercolor and graphite on heavy off-white wove paper

Graphite on paper

Graphite on off-white wove paper

Black ink on off-white wove paper

Graphite on paper

Graphite on paper

Black ink on off-white wove paper

Charcoal and red crayon (?) on off-white wove paper

Watercolor, gouache, ink, and graphite on cream paper mounted on board

Graphite and watercolor on gray-blue laid paper