Category:Navajo I secure telephones

Media in category "Navajo I secure telephones"

The following 3 files are in this category, out of 3 total.

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  Navajo I secure telephone briefcase 1.jpg 1,512 × 2,016; 1.97 MB
  
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  Navajo I secure telephone briefcase 2.jpg 1,512 × 2,016; 2.03 MB
  
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  Navajo I secure telephone in a briefcase, LPC-10 voice encoding at 24 kbs - National Cryptologic Museum - DSC07949.JPG 3,240 × 4,320; 4.31 MB