Building Addition and Alterations, Philadelphia, 1944-1946: Scheme A: plan and elevation

Graphite on paper

Graphite on paper

Graphite on off-white wove paper

Crayon on paper

Brown chalk on buff wove paper

Charcoal on off-white laid paper

Graphite on paper

Graphite on off-white wove paper

Crayon on paper

Charcoal on off-white laid paper

Graphite and pink crayon on oiled buff laid paper

Watercolor and graphite on cream wove paper; verso: black ink and graphite