1967. No Edition Remarks. 225 pages. Orange and white jacket over blue cloth with gilt lettering to spine. Black and white graphs throughout. Pages remain bright and clear. Binding is firm. Small pencil inscription to front free endpaper. Boards and spine have minimal shelf-wear, with mild corner bumping and crushing to ends. Gilt remains bright. Light tanning to board edges and spine ends. Unclipped jacket. Light tanning to spine, edges and joints. Minimal edgewear, with mild creasing. Slight rubbing to exterior.