These Poles are also recognized by the US National Cryptologic Museum (outside the NSA main building, see http://www.theatlantic.com/technology/archive/2010/10/

These Poles are also recognized by the US National Cryptologic Museum (outside the NSA main building, see http://www.theatlantic.com/technology/archive/2010/10/a-look-inside-the-nsas-code-breaking-museum/64039/ http://www.theatlantic.com/technology/archive/2010/10/a-look...) in its exhibits of Enigma and the Bombe that broke it. It was actually in those exhibits that I first learned about the role of the Poles in this story.