1953. Twelfth Edition. 416 pages. Dust jacket over green cloth. 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 light edgewear with tears and creasing. Heavy foxing. Light rubbing and marking all over.