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

Graphite on paper

Graphite on paper

Graphite and pastel on gray laid paper

Graphite on paper

Watercolor and gouache over graphite on paper

Colored crayons ; black crayon on paper

Charcoal and oil paint on cream wove paper

Black ink, charcoal, watercolor, and watercolor pencil on cream laid paper, edges taped

Graphite on paper

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

Crayon on paper

Watercolor on cream wove paper