01/08/2023

Ciphers of John Stile and Thomas Spinelly (1510s)

I added my reconstruction of ciphers of John Stile and Thomas Spinelly from the 1510s in "Earliest English Diplomatic Ciphers".
Stile's cipher turned out to be the one used in an undeciphered ciphertext I found in the Spanish archives (which was deciphered in the nineteenth century!). The condensed writing is so characteristic that the moment I saw Stile's cipher letter, I was sure it is the cipher used in the letter that I thought was Spanish. The record is now updated in "Unsolved Historical Ciphers".

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