1966. No edition stated. 796 pages. No dust jacket. Red-brown cloth with gilt titles to front and spine. Includes various diagrams. Photos embedded in text. Pages have slight foxing, tanning and minor thumbing. Previous owner's inscription to front pastedown. Text block edges are a little tanned with minor scratches. Boards have some edge wear, with moderate bumping and fraying to corners, while spine ends are slightly crushed and frayed. Rather mottled and dusty overall. Slight edge sunning. Gilt is bright.