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

Gouache on very heavy wove paper

Black ink and blue-gray watercolor on cream wove paper (recto and verso)

Black ink on off-white wove paper

Graphite and colored pencil on paper

Black ink, graphite, and yellow chalk on off-white wove paper

Ink on paper

Watercolor over graphite on off-white wove paper

Graphite with touches of red crayon on off-white wove paper

Black ink on cream wove paper

Black chalk and graphite on off-white wove paper; verso: graphite and charcoal

Watercolor on cream wove paper

Graphite on off-white wove paper