Vorgestern habe ich über ein verschlüsseltes Grafito auf einem Wasserreservoir gebloggt. Dank der Hinweise meiner Leser kann ich heute nicht nur eine Lösung, sondern auch eine äußerst erstaunliche Hintergrundgeschichte präsentieren.

The solution of an anamorphic I reently found online might be considered obscene. I’m going to cover it in this article anyway.

Anamorphics are puzzles based on a kind of secret writing. Here are a few examples, some of which are over 100 years old.

50 postcards written by two aerospace technicians in 1968 contain encrypted and hidden messages. If you want to solve them you should listen to “The Soyuz Files” podcast.

During the French Revolution, Queen of France Marie-Antoinette sent a number of encrypted letters to Swedish diplomat Axel von Fersen. Two French scientists took a close look at them.

The pigpen cipher (also known as Freemason’s cipher) is the most popular secret writing alphabet. As reported recently, it has been used to encrypt gravestone inscriptions, treasure maps, certificates, mug inscriptions, beer labels and more. Today, I’m going to introduce ten more uses.

The pigpen cipher (also known as Freemason’s cipher) is the most popular secret writing alphabet in history. It has been used to encrypt gravestone inscriptions, treasure maps, certificates, testaments, mug inscriptions, beer labels and more. Today, I’m going to introduce ten especially interesting uses.