1957. Seventh Edition. 667 pages. Green paper covers. Black and white photographic plates. Rough-cut and uncut pages. Italian text. Light foxing and moderate tanning to pages and plates. Slightly more prominent to text block edges and reverse of covers. Hinges are lightly cracked but covers remain firmly attached. Paper covers have light edge-wear and corner curling with minor tanning and scuffing overall. Spine has mild rolling and creasing.