1966. No Edition Remarks. 103 pages. Illustrated dust jacket over blue cloth with gilt lettering. Previous owners stamp to front free endpaper. Old price sticker to rear pastedown. Black and white diagrams. Pages are mildly tanned throughout. Text is clear. Binding remains firm. Boards have mild edge-wear with bumping to corners. Slight crushing to spine ends. Gilt lettering remains bright & clear. Unclipped jacket. Panels have light edge wear with tears and creasing. Visible brown staining to front panel.