The Byzantine cross, also known as the Suppedaneum cross, is a variation of the Christian cross, commonly found in the Eastern Orthodox Church, and the Eastern Catholic Churches of the Byzantine Rite. The cross has three horizontal crossbeams, where the top one represents the plate which is inscribed with the letters INRI, and the bottom one, a footrest. In many depictions, the side to Christ's right is higher. This is because the footrest slants upward toward the penitent thief St. Dismas, who was crucified on Jesus' right, and downward toward impenitent thief Gestas. This cross is the 3d model of a pandant that I have for sale on Shapeways.