1969. Fourth Edition. 100 pages. Orange dust jacket with white lettering over blue cloth. B&W illustrations and photographs throughout. Clean pages. Minimal foxing and tanning to endpapers and page edges. Some gutter cracking. Pages have a distinct odour. Mild wear and bumping to spine, board edges and corners, with scuffing and soiling to boards. Clipped dust jacket. Mild wear, tear and loss to edges and corners. Moderate staining and soiling to DJ.