Eleven frames were recorded in the tail section. The frames were given numbers from 1 to 11 for recording purposes. Frame 1 is located forward of the sternpost and upper limb of the stern knee, while Frame 11 is located at the aft end of the keelson. All the frames in this section are made of compass timbers (naturally curved pieces) to shape the concave after end of the ship. The first ten frames in this section of the hull were at one time Y‑shaped, while Frame 11 is V‑shaped in appearance. Only Frame 10 retained the original worked crook between the two frame arms. Environmental factors, i.e., natural decay and shipworm (Teredo navalis) activity, have degraded the crooks of the other frames and subsequently the rising line (gradual longitudinal rise in height of the frames to effect a narrow stern) from Frame 11 to Frame 1. On the after side of Frame 10 is a curious, but distinctive hole, 3 cm in diameter and 5 cm deep, the function of which is unclear.