1935. First Edition. 483 pages. No dust jacket. This is an ex-Library book. Green cloth with gilt lettering to spine. Black and white diagrams throughout. Book has been rebound by library, with expected inserts, stamps and inscriptions. Pages are mildly tanned, with text and diagrams remaining bright and clear. Binding is slightly loose, but all pages remain attached. Small brown stains to a few pages throughout. Small pen marks to top edge. Boards have moderate shelf-wear, with noticeable corner bumping and scuffing to edges. Spine has mild crushing to ends. Light bleach spotting allover. Gilt remains bright.