Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Typical windowsill details (full size)

Graphite and pastel on off-white wove paper

Watercolor and white gouache over graphite on heavy cream wove paper

Black ink on off-white wove paper

Graphite on off-white wove paper

Graphite on paper

Graphite on translucent wove paper

Black ink and black and brown chalk on buff laid paper

Black ink and graphite on off-white wove paper

Graphite on buff wove paper

Gray and blue crayon on paper

Charcoal on off-white laid paper

Black ink, brown and gray watercolor on cream wove paper