A large number of lead strips perforated with nail holes have been recovered. Many of these pieces would have been used as internal hull planking patches as a temporary fix for leaks. Some still retain hair and tar caulking that would have been applied on the underside to help seal the repair. These pieces have been found from bow to stern suggesting that most had been nailed in place prior to the time of sinking. There was a limited amount of the typical tar and hair matrix observed on the surfaces of both bottom and sacrificial planks as well as some of the lead patches. The majority of this matrix, designed to thwart the invasion of Teredo organisms and other wood boring species, has undoubtedly been scoured away during the intervening centuries underwater. The hair has been identified as Bovine or cow.