1933. No Edition Remarks. 152 pages. No dust jacket. Blue cloth. Contains black and white diagrams and photographs throughout. Pages are mildly tanned and foxed, but text remains clear. Binding is firm. Boards have light shelf-wear, with minor corner bumping and minimal scuffing to edges. Spine is slightly tanned, with mild crushing to ends. Light rubbing and scuffing overall. Book has a slight forward lean.