1961. Revised Edition. 71 pages. Pictorial dust jacket over blue cloth. File copy with associated stamps and inscriptions. Black and white illustrations throughout. Binding remains firm. Pages and illustrations are lightly tanned throughout. Slight stains and markings to some pages. Boards have light shelf-wear with corner bumping. Slight crushing to spine ends. Unclipped jacket has light edgewear with chips and creasing. Light tanning to spine and edges. Staining and wear marks overall.