1961. UK Edition. 651 pages. No dust jacket. Brown cloth with gilt lettering to spine. Contains black and white in text graphs throughout. Pages remain bright and clear with minimal tanning and foxing. Binding is somewhat shaky, but pages remain intact. Minimal scuffing to front free endpaper. Light creasing to gutters and corners. Text block edges slightly rubbed and marked. Boards have mild edge-wear with slight rubbing to surfaces. Visible bumping and slight fraying to corners. Soft crushing to spine ends. Minimal tanning to spine and edges. Small marks to boards. Small black spot to spine.