In 1902, a female aristocrat living near Bayreuth, Germany, received an encrypted postcard. Can a reader decipher it?

Can a reader decipher an encrypted message from Thuringia, Germany?

Here’s a selection of news related to cryptology and its history.

NKRYPT, located in Canberra Australia, is a set of eight sculptures that bear encrypted inscriptions. Today, I’m going to introduce one of these: the PVL cryptogram.

19th century musician Maurice de Raoulx has left behind a message hidden in sheet music. Can a reader decipher it?

British artist Ben Gentilli has created a series of 40 paintings that jointly include the 12.3 million-digit founding code of Bitcoin.

On Reddit, I found a pigpen message written on the skin of a prisoner. The plaintext provided in the post doesn’t look correct to me.

A challenge cryptogram from a 2012 puzzle book is still unsolved. The author will award a book copy to the first one to break it.

In the 2020 film “Enola Holmes”, several interesting ciphertexts can be seen. It is well possible that the producers took some of their ideas from this blog.

U.S. journalist and book author A.J. Jacobs has interviewed Jim Sanborn, the creator of the Kryptos sculpture. Here’s a transcript of this talk.