Description
The Pigpen Cipher is a form of substitution cipher that uses symbols, rather than other letters. Although its origin is unknown, this cipher was most famously used by the Freemasons in the 18th century- to the point that some know it as the Freemasons Cipher. However, it was also used during the Civil War. Imprisoned Union soldiers used it as a method of communication, while in Confederate camps.
The image for this entry shows the easiest way to remember what the symbols are for each letter. The symbol for each letter is the part of the grid/dot pattern that contains the letter. These symbols can be transposed directly without any rotation.