Interior of the Trier Cathedral

Brown ink, watercolor, gouache and touches of black chalk on cream wove paper

Watercolor and gouache on off-white wove paper

Black crayon, watercolor, and colored chalk on beige wove paper

Watercolor

Watercolor and gouache on cream wove paper, mounted to woodpulp board

Graphite on cream wove paper

Watercolor and white gouache over graphite on off-white wove paper

Watercolor and black chalk on off-white wove paper; verso: brown wash

Watercolor and graphite on white wove paper

Watercolor over graphite on off-white paper

Transparent watercolor over graphite on antique laid paper

Black ink, gray wash, and touches of graphite on antique laid paper, with a framing line in brown ink