1959. First Edition Thus. 453 pages. No dust jacket. Blue cloth boards with gilt lettering. Contains black and white diagrams. Slight crinkling to paper at gutter. Clean pages and diagrams with light tanning to text block edges. Binding is firm throughout with minor thumb-marking. Heavier tanning to free endpapers. Pen markings to front free endpaper. Boards have moderate edge-wear with bumping to corners and rubbing to surfaces. Slight crushing to spine ends. Gilt lettering is darkened. Moderate sunning to spine and edges. Visible wear marks to boards.