1968. 2nd Edition. 143 pages. Light green jacket over cream cloth. Black and white frontispiece. Mild water damage to front pastedown. Pages remain bright with minimal tanning and foxing. Text is clear. Binding remains firm. Boards have mild edge-wear with bumping to corners. Visible tanning to spine and edges with crushing to spine ends. Unclipped jacket. Panels have moderate edge wear with chips, tears, and creasing.