1966. First Edition Thus. Unpaginated. Two separate books, each paginated separately. Contains black and white illustrations. Slipcase. Clean pages and illustrations with light tanning and mild foxing throughout. Binding remains firm. Paper covers have mild edge-wear with slight rubbing to surfaces and curling to corners. Lettering is bright and clear. Minor wear marks to covers. Slipcase has moderate edge wear with markings to panels and scuffing to edges. Pen marks to slipcase.