1960. No edition remarks. 163 pages. No dust jacket. This is an ex-Library book. Green cloth covered boards. Black and white photographs and diagrams. Ex library copy with associated labels, inserts, stamps and annotations. Pages remain bright and clean with minimal tanning and foxing. Binding remains firm. 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.