Crappy wall abutting 17120 to north. Built with mortared river stone. Indicates a second phase of use before fire and collapse. Bacino fragment 17061 abutted wall and brick 17063 abutted wall and was placed on top of fragment 17061 during post collapse phase.

Parallel wall (17002) appears to be opus reticulatum. Two large rectangular red sandstone stones thought to be end stones, but wall may continue to the south. Same "end stones" as 17002, but different construction technique - 2 faces of friable (exposed to heat?) river stones.