Borromini's San Carlo a la Quatro Fontane, Rome

Watercolor on paper

Brown, red and white chalk on blue-green wove paper

Graphite on off-white wove paper

Watercolor and black ink over graphite on off-white paper darkened to tan

Black ink, gray wash, blue-white wash, and black chalk on tan wove paper

Brown ink, brown and gray wash over graphite on cream paper

Brown ink and graphite on cream wove paper

Graphite on cream paper

Black ink and graphite on white paper

Graphite on off white wove paper; verso, brown ink

Graphite on off-white wove paper

Graphite and white gouache on gray-green paper