Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Lighting detail at window head (full size)

Watercolor on cream wove paper

Graphite on paper

Graphite on paper

Charcoal on off-white laid paper

Black ink on off-white wove paper (recto and verso)

Black ink on off-white wove paper (recto and verso)

Graphite on buff wove paper

Black crayon on paper

Graphite on off-white wove paper

Natural raw powdered pigment (raw umber), turpentine wash, conte crayon and charcoal, with spray fixative and possibly spray varnish, on [off-white wove?] paper

Graphite on paper

Black ink over graphite on off-white wove paper