Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Revision of retaining wall (garage): plan and details (1/8" = 1'-0")

Graphite on commercially lined paper

Charcoal on off-white laid paper

Graphite on off-white laid paper

Black ink and graphite on off-white wove paper

Graphite on off-white wove paper

Charcoal and graphite on off-white paper

Graphite on paper

Colored crayons on paper

Black crayon and ink ; black crayon on paper

Sketchbook with black-and-white marbled cardboard covers

Colored chalk, colored pencil, metallic pigments and black crayon on off-white Japanese paper with added printed wove paper extension at right edge.

Graphite on off-white wove paper