Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Connector enclosures, ground and first floors: details (1/2" = 1'0")

Black, blue and brown crayon on paper

Graphite on paper

Black ink and graphite on cream wove paper

Gouache on cream wove paper

Transparent and opaque watercolor on white wove paper

Watercolor & white gouache over black & colored chalk on off-white wove paper

Silverpoint on illustration board

Graphite on off-white wove paper

Graphite on paper

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

Blue paint, with scratchwork, over a postcard

Ink and brown pencil on white wove paper