1966. Tenth Impression. 256 pages. No dust jacket. Blue cloth. Black and white illustrations 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. Brown staining to text block edges, text remains unaffected. Overall a good condition item. Boards have mild shelf wear with light rubbing and corner bumping. Some light marking and sunning.