1953. Second Edition. 200 pages. Pictorial dust jacket over green cloth. Black and white diagrams throughout. Pages remain bright and clean with minimal tanning and foxing. Binding remains firm. A previous owner's name to front free endpaper. Small bookshop label to front pastedown. Boards have moderate shelf wear with some bumping and fraying to corners and some tanning and marking. Unclipped jacket has light edge wear with minor chipping and creasing. Some tanning and foxing to all surfaces, particularly to spine.