if you look at the carvings on one side you have a naked figure (phallic symbol) and on the other side you have human figures holding either a severed head or a vase. The holes are angled so I'm guessing they were for a tripod stand. I am guessing since I don't see any burn damage that maybe it was either meant to hold some liquid or an offering of some sort. Maybe used in some sort of circumcision ritual.