1961. Sixth Printing. 256 pages. Illustrated paper covers. Minor foxing and tanning to pages. Much heavier and more prominent to text block edges, reverse of covers and title pages. Hinges are lightly cracked and stained but covers remain firmly attached. Pen inscription to reverse of front cover. Paper covers have light edge-wear and corner curling with noticeable foxing, tanning and scuffing overall. Spine has minor splitting, rolling and creasing.