The backfill on either side of this wall has not yet been removed, but on first observation this appears to be an ashlar wall in primary deposition, with a threshold between room G-11 and G-13. Will need further cleaning to clarify if the stones are not reused, as they are in the eastern half of room G-11.
N-S wall running on west side of Room G-10
Photo from east
Photo from west
Photo from north