1967. Twenty-fifth impression. 320 pages. Pictorial dust jacket over blue cloth. Black and white illustrations throughout. Colour frontispiece. Pages remain bright and clean with minimal tanning and foxing. Binding remains firm. Boards have mild shelf wear with light rubbing and corner bumping. Some moderate marking and tanning. Unclipped jacket has light edge wear with minor tears, chipping and creasing. Some rubbing and marking to surfaces.