Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Method of securing structural glass at head of bathroom windows: details (full size)

Graphite on off-white wove paper

Graphite on off-white wove paper

Black ink and graphite on off-white wove paper

Black marker and crayon on graph paper

Graphite on off-white wove paper

Crayon on paper

Graphite on white wove paper

Graphite on off-white laid paper

Black ink and graphite on off-white wove tracing paper

Black ink, gouache, and graphite, incised, on paperboard

Watercolor over graphite on off-white wove paper

Watercolor and graphite on white wove paper