The pigpen cipher alternately referred to as the masonic cipher. It is a geometric simple substitution which exchanges letters for symbols, which are fragments of a grid. 聽聽In earlier times the Freemason used cipher to write correspondence , Send messages or keep records. It is seldom used today, but remains a part of our lesser known history , none the less. They wanted to communicate among themselves 聽Without other people understanding what they wrote .聽
