1967. Wiley International Edition. 512 pages. Green paperback. Contains black and white photographic plates. Pages and plates are lightly tanned and foxed throughout. Cracking to hinges with covers slightly coming away from text-block. Previous owner's inscription to reverse side of front cover. Binding remains firm. Paper cover has moderate edge wear with scuffing to edges, tears and creasing. Heavy scuffing and splits to spine. Mild rubbing to surfaces with curling to corners.