A sigil of Lucifer that was invented in 2004 by Joy of Satan, and then adopted as the main symbol of the Church of the Elders in 2007. It is based upon part of an earlier sigil from the Grimorium Verum.
Sigil of Lucifer Symbol Tri-fold Wallet Occult Clothing Seal of Satan
Sigil of Lucifer (“Seal of Satan”) The Sigil of Lucifer is a lesser known historical magical sigil used occasionally as an emblem by modern Satanists. The image originates in the sixteenth century Italian Grimoirium Verum, or “Grimoire http://symboldictionary.net/?p=1342