Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Exterior door to roof terrace #308 and flashing details (3" =1"-0" and full size)

Watercolor and white gouache on off-white wove paper

Watercolor on cream wove paper

Graphite on paper

Watercolor, brown and blue ink, colored pencil, black chalk on off-white wove paper

Graphite on paper

Graphite on tan wove paper

Graphite on off-white wove paper

Graphite on off-white wove paper

Black crayon on off-white laid paper

Graphite and white and red pastel on gray-green wove paper

Oil and black ink on buff wove paper

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