This E-W ashlar wall is in phase with adjacent N-S wall 7142. It seems to continue the line of wall 7097/7158 (partially preserved within Room 3 to the east), suggesting that, in the original phase, there would have been a 'room' delimited by walls 7142/7162 (W), 7057 (N), 7078 (E), and 7143/7158/7097 (S). The exact relationship between this wall and block 7144 at its eastern end - of slightly different dimensions, tufo, and alignment - is unclear at the moment. See also 7144.