Image: PURPLE analog stepping order switch
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Description: Stepping order selector switch on U.S. Army improved PURPLE analog. The six-position switch is set to position "B 312" which indicates that stepping switch 3 is the fast switch, 1 is medium and 2 is slow. From a unit on display at the w:National Cryptologic Museum.
Title: PURPLE analog stepping order switch
Credit: Cropped and rotated from File:PURPLE analog, improved version of March 1944 - National Cryptologic Museum - DSC07831.JPG and said improvements released under CC0 by agr
Author: Daderot
Usage Terms: Creative Commons Zero, Public Domain Dedication
License: CC0
License Link: http://creativecommons.org/publicdomain/zero/1.0/deed.en
Attribution Required?: No
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