A Facebook user has posted a number of scans of a 19th century pocket lexicon with about 80 pages of code in it. Can a reader solve it?
A medal that is depicted in a Freemason document from 1952 bears two encrypted inscriptions. Can a reader decipher them?
In 1905, an encrypted postcard was sent from San Francisco to Paris. Can a reader break it?
In the New York Public Library, I found a cryptogram from 1925. The cleartext could be the Declaration of Independence. I wonder who created this document and why.
Around 1920, a US pulp magazine published an encrypted message exchange in its “missed persons” column. The cleartexts might refer to a familiy drama. Even two of the world’s greatest codebreakers apparently could not make sense of these cryptograms.
In 1863, during the US Civil War, a Union soldier wrote a letter to an unknown recipient. This letter is encoded in a shorthand, probably Pitman. Can a reader decipher it?
The US Navy cryptologists use a logo that contains an encrypted message. Can a reader decipher it?
Eight words and a question mark. That’s the content of an old encrypted postcard from New York City. Can a reader decipher it?
The main library of the Vatican owns an encrypted letter from 1628. Can a reader break this cryptogram?
A postcard from 1885 was written in a strange code. Can a reader decipher it?
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