A Willow Tree on the Prater Island in Munich, with the Quellwasser Footbridge and the Hospital on the Opposite Bank of the Isar River

Paper

Graphite on white wove paper

Graphite and white chalk on blue laid paper attached to cream wove paper

Graphite on cream paper

Paper

Black ink on cream wove paper

Paper

Graphite and black chalk

Black ink and brown, gray, and blue wash over graphite on cream laid paper

Brown ink and brown wash over graphite on off-white wove paper

Black, blue, red, and ochre chalk on buff modern laid paper

Graphite on off-white paper