Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Revised duct location: plan for 208 (1/4" = 1'-0")

Ink on paper

Crayon on paper

Watercolor and graphite on white wove paper

Charcoal on paper

Graphite on paper

Graphite and gray wash on off-white laid paper

Graphite on paper

Watercolor over graphite on off-white wove paper

Graphite and colored pencil on cream wove paper

Graphite on off-white wove paper

Black ink on off-white wove paper

Ink on paper