In earlier times, the Freemasons used a 'cipher' or code to write correspondence, send messages to another, or keep records. It is seldom used today, but remains a part of our lesser known history none the less.
Below is a diagram depicting the basis for the cipher. It was written by using the "cell" for each letter. There is an example of which cells are used to spell the word 'mason'. With a few minutes of study, and by memorizing the cipher, you can now read or write in the Freemasons Cipher. Enjoy!