The IX monogram or XI monogram is a type of early Christian monogram looking like the spokes of a wheel, sometimes within a circle.
The IX monogram is formed by the combination of the letter "I" or Iota for (Greek, Ancient (to 1453);: Ιησους, Jesus in Greek) and "X" or Chi for (Greek, Ancient (to 1453);: Χριστος, Christ in Greek). The spokes can also be standalone, without the circle. These monograms can often be found as ancient burial inscriptions.