1960. First Edition. 140 pages. No dust jacket. Red cloth with gilt lettering. Black and white diagrams throughout. Moderate foxing and tanning to text block edges and free endpapers. Pen inscription to front free endpaper. Some small annotations in pen throughout; text remains legible. Sticker to front pastedown. Binding remains firm. Boards have minor corner bumping and edgewear with visible scuffing and marking overall. Spine has light sunning with soft crushing to ends. Lettering remains bright and clear.