1961. 4th Impression. 72 pages. Pictorial dust jacket over blue cloth. Fully illustrated throughout. Well bound and clean pages, with mild tanning to text block edges. Thumb-markings throughout. Boards have mild shelf wear with light rubbing and corner bumping. Some light marking and sunning. Boards are slightly bowed. Clipped jacket has light edge wear with minor tears and chipping. Moderate tanning and creasing, with rubbing and marking.