Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Store details, study, and incinerator chimmeys, doors, etc. (3/4", 1 1/2 , and 3" =1"-0" )

Watercolor over graphite on heavy off-white wove paper

Graphite on buff wove paper

Graphite on paper

Graphite and black ink on cream wove paper

Watercolor and graphite on cream wove paper

Black ink on off-white wove paper

Black ink on off-white tracing paper

Watercolor and graphite on off-white wove paper

Watercolor and graphite, with touches of white gouache, on cream wove paper

Crayon on paper

Cast paper

Graphite on paper