This piece of window glass is from a transitional layer of Pit 1. Like the edge piece described previously, it is also from crown window glass. It is an element known as the bull's eye, which is cut from the center of the round, where an iron rod known as a pontil was attached. The pontil was used to spin the bubble of glass from the blowpipe out into the round. The bull's eye, like the edge piece, is cullet as it is too rough and thick to be leaded into a window frame.