1979. New Edition. 509 pages. No dust jacket. Blue cloth with gilt lettering. Black and white illustrations throughout. Pages are bright and clear with no visible markings. Binding throughout remains firm. Mild tanning and foxing to text block edges. Boards have light edgewear with corner crushing and mild marking to boards. Heavy sunning to board edges and spine, which has mild crushing to ends. Book has forward lean. Boards are notably warped.