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Mystery token! What is it's use? What is it made of? When was it made? What do the numbers mean? What do the letters mean? What does the grid mean? What does the dial mean? What is the significance of AM? What does W. & H. CO. mean? [more inside]
posted by clorox on Sep 16, 2012 - 22 answers

I intercepted someone's scavenger hunt and may have an anagram (or some other cypher) that needs solving. [more inside]
posted by cmoj on Jun 15, 2011 - 17 answers

Metafilter designers, codebreakers - David Johnston, Canada's new Governor General has a coat of arms that incorporates a long string of ones and zeroes, but that does not directly translate as binary. Of course it could simply be that "The wavy band inscribed with zeros and ones represents a flow of information, digital communication and modern media." [more inside]
posted by acro on Oct 1, 2010 - 14 answers

Best live rap freestyles or cyphers with multiple rappers? NOT BATTLES [more inside]
posted by cashman on Oct 6, 2008 - 4 answers

Please help me make a cheap but kick ass version of the amazing Mystery on 5th Avenue apartment for a friend. (recently on Mefi). [more inside]
posted by ClarissaWAM on Jun 17, 2008 - 8 answers

Cypherfiler: Did anyone check out the NYT article about the amazing puzzle/scavenger hunt that was built into the NY apartment? possibly the coolest thing i've seen in years. i'm intrigued by the part of the cypher shown but i've got a little stuck... [more inside]
posted by xz on Jun 12, 2008 - 5 answers

Long car trip coming up, I'm asking for book suggestions from others who enjoyed Leo Marks' "Between Silk and Cyanide : A Codemaker's War, 1941-1945". [more inside]
posted by JigSawMan on Jun 12, 2006 - 16 answers

Can anyone identify this song? (mp3 snippet, 154 kB) I heard it in the movie Cypher. [more inside]
posted by martinrebas on Dec 21, 2005 - 11 answers

I need help locating Vigenère cypher decoder. [more inside] [more inside]
posted by ..ooOOoo....ooOOoo.. on Jan 25, 2005 - 3 answers

Does anyone know of any famous codes or ciphers that have gone unsolved for lengthy periods of time or remain unsolved? I am thinking specifically of things like The May Day Mystery and the Voynich Manuscript (also here). So things more like those and generally less like the Beale Cipher. Maybe something to do with Art Brut or Outsider art or perhaps Kabbalic systems like Gematria. Or, if all else fails maybe something by the Rosicrucians or Freemasons?

Put another way, I am looking for cryptic and complex visual systems that maintain an internal logic (however faulty or suspect) and ESPECIALLY anything having to do with the interpretation and/or decipherment of such systems.
posted by mokujin on May 7, 2004 - 2 answers