1968. Tenth Printing. 573 pages. No dust jacket. Green cloth boards with lettering. Contains black and white illustrations. Ex-libris label. Clean pages and illustrations with light tanning and mild foxing throughout. More pronounced to free endpapers and pastedowns. Binding remains firm. Boards have mild edge-wear with slight rubbing to surfaces and bumping to corners. Lettering is bright and clear. Visible wear marks to boards.