1951. Reprinted. 277 pages. No dust jacket. Brown cloth. Volume IV. Contains black and white photographic plates. Pages and plates are lightly tanned and foxed throughout, heavier to endpapers and pastedowns. Cracking to gutters of a few pages with exposed binding. Occasional thumb-marking present. Binding remains firm. Boards have mild edge wear with slight rubbing to surfaces. Soft crushing to spine ends with small splits. Light tanning to spine and edges. Faint rubbed marking to boards. Minor brown staining to front board.