Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Exterior stone through main entrance; part of northwest elevation (1/2" and 1/4" = 1'0")

Crayon on paper

Crayon on paper

Watercolor over graphite on heavy off-white wove paper

Gouache, watercolor, brown ink and graphite on cream wove notebook paper

Black ink and graphite on ivory laid paper

Black ink and gray wash over graphite on off-white wove paper

Black ink and pen on cream-colored rag paper

Watercolor, graphite, black ink, and colored chalk on layered paper and translucent plastic, mounted to gray-brown cardboard.

Charcoal on blue laid paper

Crayon on paper

Graphite and ink on paper

Graphite on off-white paper