1961. Third Edition. 99 pages. Illustrated dust jacket over white cloth boards with gilt lettering. Slight crinkling to paper at gutter. Clean pages with light tanning to text block edges. Binding is firm throughout with minor thumb-marking. Pencil markings to front pastedown. Boards have moderate edge-wear with bumping to corners and rubbing to surfaces. Slight crushing to spine ends. Gilt lettering is bright and clear. Minor tanning to edges. Minor wear marks to boards. Unclipped jacket. Panels and spine have light edgewear with tears and creases. Moderate tanning to flaps, panels and spine.