1964. Sixth Impression. 467 pages. No dust jacket. Blue cloth with gilt lettering. Contains black and white photographic plates. Pages are bright throughout. Mild cracking to gutters, however binding remains firm. Mild thumb-marking present. Mild droplet staining to text block edges. Boards have light shelf-wear with corner bumping. Mild crushing to spine ends. Book has forward lean. Boards are mildly warped.