1956. 3rd edition. Unpaginated. Pictorial dust jacket over blue cloth with gilt lettering. Contains black & white plates. 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. Gilt lettering remains bright & clear. Unclipped jacket. Panels have light edge wear with tears and creasing.