Interior of the Trier Cathedral

Watercolor over graphite on off-white paper

Black ink and gray wash on cream wove paper

Watercolor

Black chalk, black ink, and gray wash on beige antique laid paper

Graphite on off-white laid paper

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

Black and red chalk on off-white antique laid paper, framing line in black chalk; verso: stray black chalk marks

Watercolor on cream wove paper

Graphite on off-white wove paper

Brown and gray wash over black chalk on cream laid paper

Watercolor and gouache on cream wove paper

Conté crayon on beige antique laid paper