1948. No edition remarks. 319 pages. No dust jacket. Pictorial cloth covered boards. Black and white photographs and diagrams. Pages with some foxing and tanning, particularly to endpapers and textblock edges. Binding slightly loose. Pen and pencil inscriptions and drawings to endpapers. Boards have light shelf wear with minor corner bumping and crushing to spine ends. All surfaces tanned and sunned, particularly spine. Boards are slightly bowed.