1946. Reprinted. 724 pages. No dust jacket. Blue cloth. Contains black and white diagrams throughout. Pages are mildly tanned, heavier to edges, but text remains clear. Binding is firm. Previous owner's inscription to front free endpaper. Boards have moderate shelf-wear, with noticeable corner bumping and some scuffing to edges. Spine is severely sunned, with mild crushing to ends. Faint black mark to rear board, and light water staining to spine.