1973. Thirty-Fifth Edition. 1471 pages. No dust jacket. Black cloth with gilt lettering. Contains illustrated and photographic pages with multiple diagrams. Paired with black pictorial slipcase. Bright pages with light tanning to page edges. Noticeable prize label on front endpaper, dated 1976. Grey rub marks, beige water drops and a few small nicks to text block edges. Some minor dog-eared corners. Slight water marking and creasing to rear page and paste-down corners. Noticeable water marks on front board and reverse. Spine is slightly water damaged, with rubbing to gilt title. Occasional faint finger marking throughout. Boards are mildly rubbed overall, with light tanning along spine and edges. Minor bumping to corners, and crushing to spine ends. Slipcase is mildly rubbed, with heavy scuffing to corners and splits to upper edge. With water drops on most panels. Laminate is peeling slightly. Noticeably dented.