1979. No Edition Remarks. 63 pages. Paperback book with pictorial paper covers. Contains black and white diagrams throughout. 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. Noticeable water staining to textblock edges. Paper cover has mild edge-wear with light rubbing and creasing. Some light marking and sunning. Moderate water staining to rear cover.