1961. Revised Edition. 325 pages. Illustrated dust jacket over blue cloth boards. Gilt lettering. Clean pages with light tanning and mild foxing throughout. Top textblock edge dyed blue. Thumb-marking present. Binding remains firm. Boards have mild edge-wear with slight rubbing to surfaces and bumping to corners. Gilt lettering is bright and clear. Minor wear marks to boards. Clipped jacket. Panels and spine have light edgewear with tears and creases. Price sticker to flap. Visible wear, water and ring marks to flaps, spine and panels.