Probably part of wall collapse - small fragmented wall stone. River stones in wall and collapse very friable and shatter when hit with pick - exposure to extreme heat. East face of 17012 possibly partly dismantled in re-use phase to place bricks?
E face of 17012 possibly partly dismantled in reuse phase to place bricks? Excavated on the last day without taking extents - did not characterise or label the SU beneath.
SU 17064: view toward the west
SU 17064: view toward the south