1950. 10th edition. 470 pages. No dust jacket. Blue cloth with lettering. 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 moderate shelf wear, with rubbing and marking. Light bumping to corners and heavy crushing to spine ends. Book has noticeable forward lean, with heavy sunning overall. Boards are slightly bowed with ring mark to front.