1929. Ninth Edition; Revised. 286 pages. No dust jacket. Blue cloth with gilt lettering. Contains black and white photographic plates. Pages are mildly tanned with heavy foxing. Mild cracking to gutters, however binding remains firm. Mild thumb-marking present. Boards have light edgewear with corner crushing and heavy marking and mottling to boards. Mild tanning to spine, which has mild crushing to ends. Book has forward lean. Boards are notably warped. Mild water stains and droplets to surfaces.