1951. Second Printing. 502 pages. No dust jacket. Red cloth covered boards with gilt. Black and white photographs and diagrams. Pages remain bright and clean with minimal tanning and foxing. Binding remains firm. Previous owner's name to front pastedown. Boards have moderate shelf wear with mild bumping and fraying to corners and crushing and fraying to spine ends. All surfaces tanned and sunned, particularly spine. Gilt lettering remains bright and clear. Some additional marks and staining to surfaces.