1961. Reprinted. 367 pages. No dust jacket. Red cloth covered boards with gilt. Black and white diagrams throughout. Pages remain bright and clean with minimal tanning and foxing. Cracking to front hinge with netting exposed. Binding loose. Dedication to front free endpaper. Boards have light shelf wear with minor corner bumping and crushing to spine ends. Gilt lettering to spine is slightly dulled. Some mild marks and staining to surfaces.