1961. Fourth Impression. 166 pages. No dust jacket. Patterned cloth board. Clean pages with light tanning and mild foxing throughout. More pronounced to free endpapers and pastedowns. Pen markings to front free endpaper. Minor tape marks to free endpapers. Pencil annotations and marginalia to a few pages. Binding remains firm. Boards have mild edge-wear with slight rubbing to surfaces and bumping to corners. Minor tanning to spine and edges with crushing to spine ends. Minor splits to spine ends and corners causing cloth to be frayed. Visible wear marks to boards.