Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Bracket, wire way, swivel: section and perspective

Black ink, red and white gouache on white wove paper

Graphite on off-white wove paper

Graphite, oil paint, pressure-sensitive tape collage elements on wove paper

Blue-black ink on off-white wove paper

Graphite on buff laid paper

Graphite on off-white wove paper

Watercolor and ink on paper

Watercolor and black ink over graphite on off-white illustration board

Graphite and wax crayon on glossy wove paper

Watercolor and gouache over graphite on buff laid paper

Graphite on green prepared paper

Graphite, watercolor and white gouache on brown wove paper