Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Suggested type of welding details (1" = 1'-0")

Graphite and white pastel on blue-buff wove paper

Black ink and graphite on off-white wove paper (recto and verso)

Black colored pencil on tan wove paper; verso: black ink

Black ink on off-white wove paper; verso: black ink and gray wash

Watercolor, black ink and gray wash on ivory wove paper

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

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

Watercolor over graphite on off-white wove paper

Graphite on off-white wove paper

Watercolor on off-white wove paper

Black ink on off-white wove paper

Watercolor on cream wove paper