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![Room 40 and WWI Cryptoanalysis](https://pbcdn1.podbean.com/imglogo/ep-logo/pbblog921903/640_telegraphic-comms.jpg)
Thursday Apr 21, 2016
Room 40 and WWI Cryptoanalysis
Thursday Apr 21, 2016
Thursday Apr 21, 2016
Information from the Institution of Engineering and Technology and Wikipedia.
![640_telegraphic-comms.jpg](http://wwiaq.podbean.com/mf/web/gw4w9q/640_telegraphic-comms.jpg)
Image from Paul Gannon, "First World War technology: Room 40 secret intelligence unit," Engineering and Technology Magazine, May 19, 2014, http://eandt.theiet.org/magazine/2014/05/before-bletchley.cfm, accessed April 21, 2016.
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