This wall almost certainly equals 6245, which is bound to 6133. This wall was likely constructed in phase with 6133 and 6266. The mosaic (6255) seems to be in phase with 6265 and 6266. The truncation of this wall and 6266, combined with the leveling layer on top of it (SU 6274), suggest a later reuse of the space.
Photo from south
Black and white mosaic in center east of Room G10, north of SU 6188