Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Door details, D.A doors and mirrors (full size)

Transparent and opaque watercolor on white wove paper

Graphite on green card

Graphite on paper

Black ink, graphite, black ball-point ink and collage on off-white wove paper

Graphite on paper

Black ink on gray-green laid paper

Graphite on off-white wove paper

Watercolor on off-white wove paper?

Watercolor over graphite on white wove paper

Charcoal, oil stick, acrylic, and Liquid Paper on white wove paper

Graphite on paper

Watercolor over graphite on off-white wove paper