Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Revised trellis, paved terrace: plan, elevation, and section (1 1/2" = 1'-0" and full size )

Watercolor and black ink over graphite on off-white illustration board

Charcoal on off-white laid paper

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

Graphite, ink, and blue and brown wash ; graphite on paper

Crayon on paper

Graphite on thin off-white wove paper

Pastel on beige paper mounted to illustration board

Graphite on paper

Graphite on off-white wove paper

Graphite and white gouache on gray-green wove paper

Graphite on off-white wove paper

Graphite on off-white Japanese paper