1955. 4th impression. 219 pages. No dust jacket. Orange cloth. Edited by Donald H Smith. Includes various diagrams. Photos embedded in text. 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 light marking and sunning.