1968. Fourth Printing. 92 pages. No dust jacket. This is an ex-Library book. Pictorial cloth boards. Black and white illustrations and photographs throughout. Ex-Library copy, with expected inserts, stamps and inscriptions. Binding remains firm. Pages remain bright and clear. Thumb-marking and pencil smudging present to end pages and throughout. Text block edges pencil stained. Boards have moderate shelf-wear with bumping to corners and rubbing surfaces. Slight sunning to spine and edges. Mild crushing to spine ends. Pencil marks overall. Black and white staining.