Category:Codebooks

Subcategories

This category has the following 6 subcategories, out of 6 total.

Media in category "Codebooks"

The following 9 files are in this category, out of 9 total.

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  Cipher No 9, Union Telegraphic Cipher Book, c. 1861-1862, used by General Joseph Hooker at the battle of Chancellorsville, Virginia, to secure messages sent by telegraph - National Cryptologic Museum - DSC07713.JPG 4,320 × 3,240; 5 MB
  
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  Codebook.jpg 640 × 480; 446 KB
  
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  German naval code 1920s.agr.jpg 3,024 × 4,032; 5.82 MB
  
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  Germany telephone code sheet, first page, found 1918 - National World War I Museum - Kansas City, MO - DSC07711.JPG 3,240 × 4,320; 4.97 MB
  
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  Great Cipher.png 1,080 × 1,032; 1.17 MB
  
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  KGB Victory Code pages at National Cryptologic Museum.agr.jpg 3,994 × 2,360; 4.65 MB
  
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  Obsolete chinese telegraph code.jpg 800 × 1,152; 336 KB
  
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  Phillips Code 1879 first page.agr.jpg 1,712 × 2,807; 2.92 MB
  
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  Telegraphic Dictionary of the English Language (advertisement from "Dame Europa's School").png 1,728 × 2,830; 1.39 MB