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  Pre-WWII Clandestine Equipment  
  Richard Brisson Collection  

Page under construction - 21 March 2009

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Description
Comments / Questions
Additional Web Information and Photos
1930's Card File Microphone
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Source: Personal Collection
 1930's Card File Microphone. Purchased on eBay in 1999. No other information found on the web.
Detective Dictograph in Case
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Source: Personal Collection
 Detective Dictograph in Case (1907). Additional photos: Here is another website devoted to the Detective Dictograph with excellent photos while this one is a website on the history of the Dictograph company.
Federal Surveillance Briefcase - 1939
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Source: Personal Collection
 Federal Surveillance Briefcase (1939). Additional photos: Limited research indicates no other information available on the web.
Microphone with thin wooden membrane - circa 1890
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Source: Personal Collection
 Microphone with thin wooden membrane - circa 1890. Microphone with thin wooden membrane - ca 1890 - typically hidden behind tapestry or paintings. Additional photos: Limited research indicates no other information available on the web.

Questions? Please email Richard at spytools@sympatico.ca

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