tibberaghny decorated pillar

A pillar (originally forming a part of a cross?) standing on the site of an ancient monastery founded by St. Modomhnach in the 6th century and now beside a railway bridge. On one face is a centaur holding an object looking like an axe in one hand and a dagger(?) in the other, and above him are two animals. On the other face is a circular motif with a Celtic spiraloid pattern. On the two narrow sides are animals, one of which is a stag. The date of the pillar is uncertain, but it could date to the 9th century.