1951. No Edition Remarks. 340 pages. No dust jacket. Grey cloth boards with gilt lettering to spine. Black and white diagrams throughout. Binding remains firm. Pages remain bright and clear with minimal tanning. Previous owner's inscription to front endpaper. Boards have mild edge wear with slight rubbing to surfaces. Crushing to spine ends. Tanning to spine and edges. Gilt lettering is darkened. Book has a slight forward lean.