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The reconstructed Slidex card

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At Crypto museum I saw that they’ve uploaded some Slidex cards from 1944. I had a quick look to see if I could locate the one solved by the German codebreakers and found in the report E-Bericht FNASt 9 (US National archives - RG 457 - Entry 9032 - box 22 ‘German deciphering reports’).


I didn’t expect to find anything so imagine my surprise when I saw that the Air Support Signals Unit card No. 1 (from 1944) had the same code values:



I’ve added this card in The Slidex code.

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