1960. Seventh Edition. 192 pages. Black and blue illustrated dust jacket over blue cloth boards with gilt lettering to spine. Black and white photographic plates to front section as well as diagrams throughout. Pages and binding are presentable with no major defects. Minor issues present such as mild crinkling and light tanning. Boards have mild edge wear with light rubbing and crushing. Some light marking and tanning. Gilt lettering is bright and clear. There is bumping to corners. Book has a slight forward lean. Unclipped jacket has moderate edge wear with chips, tears and creasing. Surface damage to front.