1955. No Edition Stated. 128 pages. Pictorial jacket over green cloth. Contains black and white photographic frontispiece, with other plates throughout. Also contains black and white diagrams and a map. Pages are lightly tanned and foxed, but text and plates remain clear. Binding is firm. Boards and spine have minimal shelf-wear, with minor corner bumping and crushing to ends. A few faint marks overall. Unclipped jacket. Light tanning to all surfaces, heaviest to spine. Panels have light edgewear, with small tears.