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X-WR-CALDESC:26 February 1981: NSA sponsored exhibit formally opened at the
  Smithsonian and was open for one year. The exhibit\, 'Cipher Machines: Wo
 rld War I - World War II' featured devices ranging from the 1910 cipher di
 sk to the German Enigma and the US SIGABA. Commercial machines of the 1920
 s and 1930s were also on display. Learn more via the pdf link below.
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DESCRIPTION:26 February 1981: NSA sponsored exhibit formally opened at the 
 Smithsonian and was open for one year. The exhibit\, 'Cipher Machines: Wor
 ld War I - World War II' featured devices ranging from the 1910 cipher dis
 k to the German Enigma and the US SIGABA. Commercial machines of the 1920s
  and 1930s were also on display. Learn more via the pdf link below.
DTSTART;TZID=America/New_York:20310226T000000
DTEND;TZID=America/New_York:20310226T235900
LOCATION:
SUMMARY:1981: NSA sponsored exhibit opened at Smithsonian.
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