Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Pergola - Upper garden: plan and elevations (1/2" = 1'-0")

Chalk on paper

Graphite on paper

Graphite on paper

Graphite on paper

Black ink on off-white wove paper

Black ink and charcoal on cream laid paper

Black ink on white wove paper

Charcoal, white pencil, white chalk, black ink, red watercolor (or ink) on off-white wove paper

Watercolor on off-white Bristol board

Black ink on tan wove paper

Graphite on paper

Watercolor and graphite on white wove paper