1968. Fourth Impression. 285 pages. Dust jacket over blue cloth. Black and white photographic plates. Pages and plates are bright and clear with mild foxing and tanning to text block edges, pastedowns and free endpapers. Light creasing and staining to gutters and hinges but binding remains firm. Boards have minor corner bumping and edgewear with mild tanning overall. Spine has light staining and tanning with soft crushing to ends. Book has a slight forward lean. Clipped dust jacket with minor rubbing, chipping and tearing to edges. Moderate tanning and scuffing overall.