Quarry cut SU386 was partially filled with rubble; SU387 is socle of wall built on top of rubble. Was partially destroyed by later, sloping cut SU382. SU387 is equal to SU381, SU387 is the socle to the south of later wall SU352. SU387 is better preserved and more easily distinguishable from rubble fill than SU381, but is more damaged toward N end.