Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Workshop wall and sill: details (full size)

Colored pencil and chalk on pinkish-tan wove paper

Graphite, white chalk, and red crayon on green wove paper

Oil, graphite and turpentine on off-white wove paper, mounted to painted board

Charcoal on paper

Charcoal on heavy buff wove paper

Graphite on off-white wove paper

Black ink on heavy off-white wove paper

Ink on paper

Black ink and wash on white wove paper

Paper

Graphite on off-white wove paper

Black ink and white gouache over graphite on off-white wove paper