1966. Revised Edition. 871 pages. Illustrative jacket over blue cloth. Contains black and white plates throughout. Pages and binding are presentable with no major defects. Minor issues present such as mild cracking, inscriptions, inserts, light foxing, tanning and thumb marking. Overall a good condition item. Boards have mild shelf wear with light rubbing and corner bumping. Some light marking and sunning. Unclipped jacket has moderate edgewear with chips, tears and creasing. Light tanning to spine. Some rubbing to surfaces. Scuffing to edges.