Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Change in stone chimney over 220

Black ink and black wash on tan wove paper

Crayon on paper

Graphite on off-white wove paper

Colored pencil, graphite, and black ink on cream wove paper; verso: watercolor and graphite

Graphite on paper

Transparent and opaque watercolor on white wove paper

Leather bound sketchbook with additional four drawings on scrap paper

Graphite on off-white wove paper

Watercolor and graphite, squared in graphite, on off-white illustration board

Graphite on off-white wove paper

Black ink on cream wove paper

Watercolor and white gouache over graphite on off-white wove paper