Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Typical windowsill details (full size)

Black ink on off-white wove paper

Watercolor on cream wove paper

Ink and brown pencil on white wove paper

Watercolor over graphite on off-white wove paper; verso: graphite

Black ink on heavy off-white machine-made wove paper

Black ink on off-white wove paper

Black ink and colored pencil on white wove paper

Graphite on paper

Black chalk over graphite on brown wove paper

Graphite on paper

Charcoal on blue wove paper

Transparent and opaque watercolor on beige paperboard