This early booklet explains how to perform shadowgraphy. It also includes a potted biography of Trewey. Includes lots of interesting Hamleys adverts
 
Condition: Good, spine has been taped with "Magic Tape", some small marks and minor creases.
 
Binding: Booklet
Year: c.1922
Publisher: Jordison and Co. 
Pages: 16
Dimensions (to nearest cm): 22 X 14cm