Office Unit and Factory Building, Greensboro, North Carolina, 1944-1946: Wall sections (1 1/2" = 1'-0")

Watercolor over graphite on off-white wove paper

Black crayon on paper

Graphite on tan wove paper

Graphite on white wove paper

Crayon on paper

Black ink and graphite on off-white wove paper

Graphite on paper

Fiber-tip ink on white wove paper, from a spiral-bound sketchbook

Charcoal on off-white laid paper

Crayon on paper

Watercolor and graphite on paper

Turpentine wash with oil, oil crayon and graphite on cream laid paper