Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Curved glass screen: plan, section, elevation, and detail (1 1/2" = 1'-0" )

Watercolor over graphite on off-white wove paper

Watercolor on off-white wove paper

Black crayon on envelope

Transparent watercolor and black ink on cream wove paper

Watercolor over graphite on off-white wove paper

Graphite on paper

Watercolor, gouache, black ink and graphite on cream wove paper mounted on board

Watercolor on blue wove paper

Graphite on paper

Watercolor and graphite on cream wove paper

Charcoal and graphite on off-white laid paper, verso: charcoal

Graphite and colored pencil on graph paper