Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Lighting detail at window head (full size)

Purple and black ink on off-white wove paper (surface losses and adhered paper residues occurred in artist's studio)

Watercolor and graphite on white wove paper

Black ink, charcoal, and watercolor on cream laid paper, edges taped

Graphite on paper

Black ink over graphite on thin tracing paper, mounted to off-white cardboard

Graphite on cream wove paper, mounted on heavy cream wove paper

Sketchbook with cardboard covers and spiral wire binding

Silverpoint on illustration board

Colored crayon on brown wove paper

Watercolor and graphite on white wove paper

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

Black crayon over graphite on brown wove paper