Japanese Cryptographic Postcard (before WWII)

I acquired a curious unused Japanese postcard (probably before WWII) depicting a cipher wheel and described it in
"日本の電信暗号" and
"Japanese Telegraph Codes".
It's titled Ango Onshin(暗号音信).
(I know this has nothing to do with telegraphy, but there is no other article for this item to fit in.)

Ciphers of Henry III of France

I uploaded a new article "French ciphers during the Reign of Henry III of France."
It includes more than a dozen ciphers of his reign that I reconstructed from materials in the French archives. The reconstruction was done some years ago, but it took time in organizing them into a preesntable format.
There remain many undeciphered letters, many of which can now be deciphered with the help of the reconstructed keys by those versed in the language and background.
There are also some ciphers still unidentified.