1955. Twentieth Edition. 108 pages. No dust jacket. Paper covered boards with cloth to spine. Light tanning to pages. More prominent to text block edges, pastedowns and free endpapers. Moderate cracking to gutters and hinges causing some looseness to binding but pages remain attached. Boards have minor corner bumping and edgewear with mild staining, tanning and scuffing overall. Spine has heavier tanning with soft crushing to ends. Book has a slight forward lean.