1969. Second Revision. 165 pages. This is an ex-Library book. Pictorial paper covers. Black and white photographic plates. Ex-library copy, with expected inserts and inscriptions. Pages are bright and clear with light tanning to text block edges. Moderate cracking to gutters causing some looseness to binding but pages remain attached. Paper covers have minor edge-wear and corner curling with slight scuffing overall. Spine has light sunning, rolling and creasing.