1969. Fourth Edition. 322 pages. Illustrated dust jacket over green cloth boards. Gilt lettering. Contains black and white illustrations and plates. Clean pages, plates and illustrations with light tanning and mild foxing throughout. More pronounced to free endpapers and pastedowns. Hinges are slightly cracked with exposed netting. Binding remains firm. Boards have mild edge-wear with slight rubbing to surfaces and bumping to corners. Gilt lettering is bright and clear. Minor sunning to spine and edges with crushing to spine ends. Visible wear and bubbling marks to boards. Clipped jacket. Panels and spine have light edgewear with tears and creases. Minor tape repairs to interior jacket. Moderate tanning, water and wear marks to flaps, panels and spine.