Interior of the Trier Cathedral

Black chalk, partially used wet, on brown compressed paper board

Graphite on cream wove paper, darkened to tan

Black ink and gray wash on off-white paper

Brown ink over graphite on cream wove paper

Graphite, brown and gray wash on cream paper, darkened

Transparent and opaque watercolor on off-white wove paper

Watercolor and gouache over graphite on off-white wove paper

Watercolor and gouache on off-white wove paper

Black ink and gray wash on cream wove paper

Watercolor and gouache on cream wove paper; partial framing line in graphite

Graphite on wove paper

Black ink with gray and pink wash over black chalk on cream laid paper (joined), partial framing line in brown ink.