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Last update: 22 February 2017   -    Dernière mise-à-jour: 22 février 2017


  Pre-WWII Clandestine Equipment  
  Collection - Richard Brisson - Collection  


Image Link
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.
Model 114 Surveillance Briefcase by Federal Laboratories - 1939
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Source: Personal Collection
Model 114 Surveillance Briefcase by Federal Laboratories (1939) - also called "Federal Sound Detector".
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 - the wood is actually from pitch pine and is unique to the 1000 Islands (U.S. and Canadian border) along the St Lawrence River. Circa 1890. This primitive microphone was typically hidden behind tapestry or paintings.

Additional photos:
Limited research indicates no other information available on the web.


If you have questions or suggestions, please email Richard at his spytools@sympatico.ca email address.

Any content (original photos or text) which is displayed herein is for the strict viewing and educational enlightenment for those who visit this website. Other sites can link to content of this website or parts therein and must do so with appropriate and clear accreditation. The whole or any portions of photos and/or text herein or local to this website (i.e. which extend from www.campx.ca) must not be copied nor reproduced without the explicit consent of the author Richard Brisson at his spytools@sympatico.ca email address.



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