1967. Second edition. 84 pages. No dust jacket. Pictorial paper covered boards. Black and white photographs and diagrams. Fold-out plan at rear. Pages and binding are presentable with no major defects. Minor issues present such as mild cracking, inscriptions, inserts, light foxing, tanning and thumb marking. Overall a good condition item. Boards have mild shelf wear with light rubbing and corner bumping. Some mild marking and tanning. Some minor pen inscriptions on front. Boards are slightly bowed.