1920. Sixth edition. 445 pages. No dust jacket. Brown cloth covered boards with gilt. Pages remain bright and clean with minimal tanning and foxing. Binding slightly loose. Minor pencil inscriptions to front free endpaper. Boards have heavy shelf wear with bumping and fraying to corners and crushing and fraying to spine ends. All surfaces heavily tanned, particularly spine. Gilt lettering to spine is dulled but remains brighter on front.