1953. No Edition Stated. 280 pages. No dust jacket. White paper-covered boards with brown cloth spine. Volume II. With various fold-out diagrams. Pages have slight foxing, tanning and minor thumbing. Foxing more noticeable towards the start and end of the book and on text block edges. Many dog-eared corners. Slight creasing and warping to many pages. Text block edges a bit scuffed. Boards have some moderate edge wear, with slight bumping to corners and minor bumping and fraying to spine ends. Boards a little rubbed and marked overall. A few liquid droplet marks to spine.