1960. Sixth Edition. Unpaginated. Pictorial dust jacket over beige cloth with green lettering and decoration to front board and spine. Colour illustrations throughout. Text and illustrations remain bright and clear. Binding remains firm. Illustrations to pastedowns and endpapers. Small watermarks to boards. Small scratch and crease marks to boards, heavier to rear. Minor edge wear with some crushing to spine ends and bumping to corners. Unclipped dust jacket. Moderate edge wear with chips, tears and creasing. Water marks and tanning to inside of jacket. Heavy white marks to rear of jacket.