Wall 5343, constructed in opus incertum masonry, is a later feature constructed without a foundation upon the tufo pavement 5410. The wall adjoins wall 5341, which forms the northern wall of room 3 and predates 5343. 5343 represents a later phase in the development of room 5, possibly related to opus incertum wall 5311 and the reorganization of room 3.
Small concrete NS wall