Two blocks of ashlar masonry potentially functioning as the facade of a building in an earlier phase. It is covered by a later construction wall as evident by position and building method. Most likely the bottom course of a multi-level wall which would mirror the similar construction of 5659 to the west of 5471.
Pier at southern end of 5456
Pier at southern end of 5456 and Molded tufo blocks at SE corner of room 13.