File:The Union Cipher Disk (5176186267).jpg

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Description Derived from a photo taken at the National Cryptologic Museum, NSA.
Date Unknown date
Source The Union Cipher Disk
Author Ryan Somma from Occoquan, USA

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1 January 1980

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current19:21, 3 September 2021Thumbnail for version as of 19:21, 3 September 20211,200 × 1,200 (234 KB)wikimediacommons>Belburypadding

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