Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Method of securing structural glass at head of bathroom windows: details (full size)

Watercolor on off-white wove paper

Graphite on paper

Watercolor on cream wove paper

Graphite on paper

Red chalk on gray wove paper

Watercolor over graphite on off-white wove paper

Black ink on off-white wove paper

Graphite on paper

Black ink over graphite w/corrections in white gouache on off-white illustration board

Black chalk on off-white wove paper

Oil on tracing paper

Graphite, red crayon, and white gouache on off-white wove paper