Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Lower pool in garden: plan and sections (1/2" = 1'-0")

Watercolor over graphite on off-white wove paper

Graphite on heavy cream wove paper

Pastel on white wove paper

Watercolor over graphite on cream wove paper

Black ink on off-white wove paper

Charcoal on cream laid paper

Oil and black ink on buff cardboard

Ink on paper

Watercolor and charcoal? on heavy off-white card

Crayon on black illustration board

Sketchbook with beige cloth-covered cardboard covers

Graphite on tan wove paper