Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Door frames: details (full size)

Charcoal and chalk on off-white wove paper

Watercolor and graphite on cream wove paper

Watercolor on off-white wove paper

Watercolor on off-white wove paper

Crayon on paper

Charcoal on off-white wove paper

Watercolor and graphite on cream wove paper

Graphite on off-white antique laid paper

Graphite on graph paper

Watercolor over graphite on off-white wove paper

Charcoal on faded blue laid paper

Graphite on off-white wove paper