Details of exhibit

Exhibition:
1914 Fifty-ninth Annual Exhibition of the Royal Photographic Society of Great Britain  
Exhibit title:
Demonstration of one of the methods of Bank Note protection shown in frame No. 356  
Exhibitor:
A. E. Bawtree 
Section:
Scientific and Technical Photographs, &c. 
Exhibit No.:
358 
Description:
A hidden design in incorporated in the printing of the document and can only be seen by the means of a special screen in the possession of the banker. In this case two such design are incorporated, and flash out in different colours according in the position of the screen upon the document. 
Exhibit type:
Photographic equipment and supplies 
Process:
[Not Listed] () 
Award:
none