From John H. Vincent, Early Footsteps of the Man of Galilee

To defend his placement of the northern wall of the Temple Mount, Ritmeyer points to this rare photograph, taken in 1894, that shows two partial walls back to back. The rough stones below the windows form the unfinished backs of the stones that faced south, onto the Temple Mount; the smoother stones at lower right in the photo are the finished stones that faced the Pool of Israel. These stones, says Ritmeyer, locate the Pool of Israel (and therefore the northern wall of the Temple Mount) with certainty.