Building Addition and Alterations, Philadelphia, 1944-1946: Second floor plan (1/8" = 1'-0")

Black ink on off-white wove paper

Black and brown ink, black chalk and gray wash on off-white notebook paper

Black crayon on off-white wove paper

Graphite on dark cream laid paper

Graphite on off-white wove paper

Charcoal on off-white laid paper

Graphite on paper

Black ink, graphite, and colored chalk on cream wove paper

Graphite on tracing paper

Watercolor over graphite on off-white wove paper

Graphite on off-white wove paper

Black ink on white wove paper