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The 408 cipher, also called the "three part cipher," is a cipher sent in three different letters to three different newspapers on July 31, 1969, by The Zodiac Killer. The Zodiac did not reveal his name in this cipher. Part 1 was sent to the Vallejo Times-Herald. Part 2 was sent to the S.F. Examiner. Part 3 was sent to the S.F. Chronicle.

408 Zodiac cipher


  • The cipher was an interesting one as it did not contain the Zodiac symbol.

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