1947. No Edition Remarks. 912 pages. No dust jacket. Brown cloth covered boards with gilt. Black and white diagrams throughout. Pages remain bright and clean with minimal tanning and foxing. Binding remains firm. Minor pencil inscriptions to front free endpaper. Boards have moderate shelf wear with mild bumping and fraying to corners and crushing and fraying to spine ends. All surfaces heavily tanned, particularly spine. Gilt lettering to spine is heavily dulled. Boards are slightly bowed.