1950. Fourth Edition. Unpaginated. No dust jacket. Removable plastic wrapper over red cloth. Pages are moderately tanned with visible foxing. Mild cracking to gutters, however binding remains firm. Notable tape staining to endpapers. Boards have light shelf-wear with corner bumping. Mild sunning to spine. Mild scratching and marking to boards. Book has forward lean. Boards are mildly warped.