1954. 6th Edition. 176 pages. Pictorial dust jacket over blue paper covered boards. 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. Overall a good condition item. Boards have mild shelf wear with light rubbing and corner bumping. Some light marking and sunning. Unclipped jacket has heavy edgewear with areas of loss, heavy tears, chips, and creasing. Light tanning to spine and edges.