1956. First Edition. 964 pages. No dust jacket. Blue cloth with gilt titles to spine. Includes photographic plates. Includes various diagrams. Pages are rather marked with pronounced tanning and heavy foxing, plus thumbing. Foxing most intense towards the start and end of the book and on text block edges. A few dog-eared corners. Hinges are cracked with exposed netting. Boards have some edge wear, with heavy bumping and fraying to corners, while spine ends are slightly crushed and frayed. Rather scratched, rubbed and marked overall. Gilt is dulled and worn. Several dents to board edges.