1961. First Edition. 104 pages. Blue dust jacket over blue boards. Expected library inserts, stamps and inscriptions. Pages remain clear with minimal tanning and foxing. Library blind stamp and pen marks to front free end paper. Binding remains firm. Boards have mild edge-wear with slight rubbing to surfaces. Mild crushing to spine ends. Book has a slight forward lean. Unclipped jacket has light edge-wear with tears and creasing. Moderate tanning to spine.