Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Window hardware details (full size)

Black pen and ink on beige-yellow, smooth, wove paper

Black ink on off-white antique laid paper

Charcoal, oil stick, acrylic, and Liquid Paper on white wove paper

Black ink and white-gray gouache on grayish-white textured wove paper

Black ink and oil on thin off-white wove paper, mounted on ivory wove paper

Black ink on off-white wove paper

Watercolor and gouache on off-white wove paper

Black ink and charcoal on cream laid paper

Graphite on cream wove paper

Black chalk on off-white modern laid paper

Graphite on brown wove paper

Black ink on off-white wove paper