Isolde and Brangäner, from "Tristan and Isolde" (recto and verso)

Oil on very thin, fibrous paper, set down on heavier paper

Watercolor on white wove paper mounted overall to board

Gray wash with graphite on off-white wove paper

Crayon on off-white wove paper

Watercolor over graphite on off-white wove paper

Graphite on buff wove paper

Graphite on darkened off-white wove paper

Gray wash and white gouache over graphite and charcoal on off-white wove paper

Watercolor on blue laid paper

Black ink and graphite on cream wove paper

Graphite on gray-green wove paper

Black ink and black wash on heavy off-white wove paper