This square contains the letters of the Names of the Archangels of the first nine sephiroth. Metatron, Tzaphkiel, Tzadkiel, Kamael, Michael, Haniel, Raphael and Gabriel. These letters add up to 1960 – 7 x 280
The outer columns and rows have the number 277 (for which Crowley gives “gratia, benevolentia”) and 283 (“that goes on foot”). These words seem to come from “friend” and “foot soldier”).
The 5 remaining columns and rows have the value of 280 which is the Gematria of Sandalphon.
Tzaphkiel & Raziel: