1973. Third Edition. 118 pages. Pictorial dust jacket over blue cloth. Black and white photographic plates. Pages and plates are bright and clear with mild thumb marking and tanning to text block edge, pastedowns and free endpapers. Binding remains firm. Boards have minor corner bumping and edgewear. Spine has light sunning with soft crushing to ends. Clipped dust jacket with minor rubbing, chipping and tearing to edges. Moderate tanning and scuffing overall.