1921. Fifth Unchanged Edition. 622 pages. Half bound in leather with marbled paper covered boards. German text. Light foxing and heavy tanning to pages and text block edges; lighter to pastedowns and free endpapers. Pen inscription to title page. Annotations, underlining and marginalia in pencil throughout; text remains unaffected. Binding remains firm. Boards have minor corner bumping and edgewear with mild tanning and scuffing overall. Mild splitting to joints. Spine has heavier tanning with soft crushing to ends. Book has a slight forward lean.