Ashlar pillar that delineated the Via Gabina and separated it from the area F complex. It's similar in nature to the other pillars along the road (5721, 5722, 5723, 5724, 5725, 5727, 5729). This pillar is slightly different in that it has a shallow base with sloped sides and a large square tufo block on top.
Tufo pillar W of 5727 along Via Gabina