The Seal of Saturn is a magical symbol representing the planet Saturn, and its ruling Sephira Binah.
The magical tradition of using seals or signatures for spiritual energies or entities is quite old (similar seals can be found on two thousand year old Coptic magical papyri). This particular example probably dates to medieval times, and is drawn from the kamea or “magic square” of Saturn, an ancient table of numbers believed to contain the magical essence of Saturn. The magic square of Saturn is a table of the numbers one through nine, arranged in such a way that all rows add to 15. The seal is created by tracing the numbers in the square in order.
In the kabbalistically-based traditions of ritual magic, the planets are the manifestation in the physical world of higher cosmic forces. These forces are represented by the numbers that embody their qualities. The seals and symbols are used to invoke those qualities (Saturn in ritual magic represents the forces of containment, definition, limit, time, death, and stagnation) in ritual.
Magick Square of Saturn
The loshu, a Taoist talisman