1960. Twenty-ninth impression. 299 pages. No dust jacket. Blue cloth covered boards. Pages remain bright and clean with minimal tanning and foxing. Binding remains firm. Rear free endpaper missing. Minor pencil marks to front free endpaper. Boards have moderate shelf wear with mild bumping and fraying to corners, but heavier crushing and bumping to spine ends. All surfaces tanned and sunned, particularly spine. Boards are slightly bowed.