Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Bar details (1/2" = 1'-0")

Graphite and gesso on paper

Black crayon on paper

Black crayon and ink ; black crayon on paper

Black chalk and charcoal on off-white laid paper

Graphite on paper

Black, white, and red chalk on light green wove paper

Watercolor and graphite on layered off-white wove paper

Graphite on buff wove paper; verso: black ink

Graphite on paper

Charcoal on translucent paper

Charcoal and black ink on cream wove paper

Sketchbook with cardboard covers and spiral wire binding