10/09/2025

Cipher of Imperial Ambassador Juan Perez (1527)

The cipher used in a letter from Juan Perez to Emperor Charles V turned out to be the same as the one used by his predecessor, Juan Manuel, of which I uploaded my reconstruction yesterday. Although I listed the letter in "Unsolved Historical Ciphers", it seems to be calendared in CSP Spain. (I will update relevant articles when my PC comes back from repair.) 


 

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