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

Graphite on ivory laid paper

Colored crayons on paper

Graphite on heavy cream wove paper

Graphite on cream wove paper

Charcoal on blue laid paper

Black crayon with graphite and blue and green crayon on cream wove paper

Watercolor over graphite on off-white wove paper

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

Watercolor over graphite on heavy off-white wove paper

Crayon on paper

Black ink of off-white wove paper

Black chalk on tracing paper