1939. 4th Edition. 106 pages. Grey cloth with lettering. 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 moderate shelf wear, with rubbing and marking. Light bumping to corners and crushing to spine ends. Book has noticeable forward lean, with light sunning to spine and edges.