This is the enlarged and revised second edition of Vernon's third significant publication. Lots of great card and close-up work here. 
 
Condition: Good, some minor wear and creasing, previous owner's address to inside front cover and retailer's stamp to title page, a few other small ink annotations. 
 
Binding: Booklet
Year: 1949
Publisher: Max Holden
Pages: 41
Dimensions (to nearest cm): 23 X 15cm