Most likely Lock 8 in St. Johns flight, but possibly in the Brookwood flight. Late 1980s
The cill is at the near end of the lock, and the lock bridge is at the far end. That means we are looking east, so the tow path is on the north side. That means it is either St John's flight or Brookwood flight. Lock 8 has coping stones and a mooring bollard similar to this picture, so is the most likely.
ROMA ID: 018013E